BaddJet Archive Home

Racing

History · 1987 to 2026

The aftermarket: pumps, plates, mats and the registers

In plain words. Pumps, grates, ride plates and traction mats came from specialist makers. This chapter sets out what trademark and patent records, trade magazines and the makers' own pages show of seven of them, then counts the sixteen patents it ties to five of them, fifteen filed by 1998, and what its stated register searches returned.

Impellers, intake grates, ride plates and deck mats were sold by specialist makers, and most of the documents cited here about those makers are register records. This chapter sets out what those records, trade articles and the makers' own pages show of Skat-Trak, Solas, R&D, Jet Dynamics, Ocean Pro, Worx Racing Components and Hydro-Turf, then counts the patents and trademark records that its stated searches returned.

Words on this page (3)
Aftermarket Part
A part that replaces an original one or is used in addition to it, and is not limited to providing the same function as its OEM counterpart. That is the 2010 glossary saying plainly what the 2002 one implied.
pump cover plate
IJSBA's name for the ride plate in its class documents. The Ski Lites rule allows a modified or aftermarket one within stated limits on width and extension, with no fins, rudders or skegs on it
ride plate
The flat plate that covers the cut-out in the hull for the jet pump, which the craft rides on; a shop's tuning notes report that the choice of plate trades smooth-water top speed against control and handling. IHRA calls it both the ride plate and the pump cover, and IJSBA's class documents name it the pump cover plate in their plate rules but also say ride plate in the trim tab rules that bar trim tabs attached to it. Both books bound how far an aftermarket one may extend past the original.

On the engine

In the water path

Under and on top

Around the parts

  1. Shops and their teams
  2. Pipes and engine parts
  3. Pumps, plates and registers (this chapter)
  4. Hulls, rules and closures
The parts the four aftermarket chapters cover, grouped by where they sit. A map of the chapters, not a drawing of any machine, and not every part a ski has.

Impellers and pumps: Skat-Trak and Solas

Confirmed

Skat-Trak and Solas are two of the names the held documents attach to the part that spins in the pump. Skat-Trak's own page of 1998 says the company designs racing and recreational equipment for watercraft and off-road riders and builds impellers daily, and those are the company's claims. Group K, in comments on the magazines printed on its own pages, wrote under a January 1996 issue that Skat Trak "now offers" smaller-hubbed "Slimline" props and a new "Swirl" line, and under an April 1997 issue that swirl props were by then made only by Skat Trak. The Watercraft Journal, in an article of August 2014 on the company's factory, described impellers, stators and intake grates cast from wax patterns and Magnum Pumps built to a customer's specification. It wrote that the company began with custom paddle tires for dune buggies, sand rails and ATVs, "stepped into offering impellers by the early 1980s", and that the tires were the far larger side of the business. The association's associate member list of 9 March 2005 names Skat-Trak at Calimesa, and its present page, stamped 2017, names it again. By a letter that The Watercraft Journal printed on 21 December 2022, the company's president said it would stop making watercraft parts, as the chapter on hulls, rule books and closures tells. Solas's dated record is mostly the register's. The SOLAS mark for marine propellers was filed on 7 December 1987, claiming first use on 1 April 1987. Jet pump systems first appear among goods in 1995, in JETPRO, abandoned in 1997; GOLD PRO followed in 1998 and was abandoned in 2001. SOLAS, filed on 16 August 2005 and registered on 7 November 2006, covers, among other goods, jet pump systems of shafts, intake grates, tracts, impellers, stators and nozzles for marine vehicles, with use in commerce claimed from September 1998; the registry's words are marine vehicles, not personal watercraft. Group K's comments on issues of 1996 and 1997 name Solas impellers by letter pitch and a "Super Camber" series. The company's page of 2015 says it was founded in 1985 and describes propellers; its present profile also lists personal watercraft parts, among them impellers, jet pumps and intake grates. The register's earliest record is the 1987 application, and no held document reaches back to 1985 (searched the archive's mirror and research cache, 2026-10-06), so the founding year stays the company's claim. A later impeller name, ADONIS, was filed on 10 August 2022 by Short Block Technologies, which claims first use on 2 August 2016. The association's post of 16 May 2023 describes the company as a maker of remanufactured personal watercraft engines, formed in 1997 by Greg Pickren, which reads like the company's own telling, and its post of 25 November 2024 calls it part of a group that includes Adonis Impellers. The Watercraft Journal called CJ Lammers the company's president in March 2016.

Sources: Skat-Trak About page 1998; Group K Between the Lines 1996; Group K Between the Lines 1997; Watercraft Journal Skat-Trak visit 2014; Watercraft Journal Skat-Trak 2022; IJSBA associate directory 2005; IJSBA associate members page; USPTO record serial 73699150; USPTO record serial 74729508; USPTO record serial 75500174; USPTO record serial 78693648; Solas about page 2015; Solas company profile 2026; USPTO record serial 97543332; IJSBA SBT title sponsor 2023 and 2024; IJSBA SBT lead title sponsor 2025 and 2026; Watercraft Journal SBT dyno 2016

Intake grates and ride plates: R&D, Jet Dynamics, Ocean Pro and Worx Racing Components

Confirmed

R&D's earliest register record for grates is from the early 1990s. The AQUAVEIN mark, for foiled gratings for personal watercraft, was filed on 19 January 1993 by an individual trading as R & D Racing USA, with first use claimed for 16 December 1992. Two marks of 1994 for foiled jet gratings followed, and in 1995 the corporation, R & D Racing Products U.S.A., Inc., filed for a flame arrester. Personal Watercraft's profile of April 2008 reports R&D naming the Aqua Vein intake grate among its aftermarket products, and describes ride plates, flame arresters and drop nozzles on its shelves. A BRP patent lists, among references cited by its applicant, web pages titled "Aquavien Pro Shoe/Grate 2002" and "R&D Grate 2004", which the applicant retrieved in November 2009, and a patent granted in 2010 lists catalog pages of 1 September 2009 for R&D Aquavein and Worx Racing Maxiloader intake grates. Jet Dynamics' mark record claims first use on 30 April 1989, an owner's claim; the earliest dated filing held is a related patent application of 12 December 1989, followed by a toploader patent filed in 1991 for a plate that divides the pump inlet and shields the drive shaft. The Times-News of Twin Falls reported on 8 March 1992 that two veteran jet boat racers, Glen Dilworth and Don Moyle, had formed the company to make and market their inventions; the company's page says 1990 and calls itself home of the Shaft Shielding Toploader and Concave Rideplate. A grating patent filed in 1992 by Glenn Dickinson and Bill Chapin, whom Personal Watercraft's profile of 2008 places at R&D, lists a Jet Dynamics advertisement in Jet Sports among its references; the patent names no company. Group K's comment on the July 1997 issue of Watercraft Power says it abated the high-speed instability of its 1130 Ventures with beach house sponsons and a Jet Dynamics ride plate, and adds that Jet Dynamics did not yet make a plate for the Venture, so it modified and shimmed a Blaster ride plate to fit. Ocean Pro's record is the register's. Its 1987 application lists ride plates among the parts of single person recreation jet boats; VORTEX, for flame arrestors for personal watercraft engines, was filed in 1994, and Group K's comment on the July 1997 Splash flame-arrestor test notes that Ocean Pro arrestors were absent from it. The earliest printed date for Worx in the held documents is on catalog pages of 1 September 2009 that a patent lists, one of them for "Worx Racing Maxiloader" grates; an undated Group K page on the Kawasaki SXi Pro 750, which discusses the 2002 model, also names a Worx ride plate and scoop grate (searched the archive's mirror and research cache, 2026-10-06). Worx's own page says Worx Racing was established in 1996 and builds parts in Australia, a claim of its own; the Australian Business Register shows the business name Worx Racing Components registered on 2 November 2023 to a private company whose ABN is active from 2000.

Sources: USPTO record serial 74349341; USPTO record serial 74512146; USPTO record serial 74512147; USPTO record serial 75013174; Personal Watercraft on R&D 2008; US patent 8905800; US patent 7794294; US patent 5114368; US patent 5234361; Times-News 8 March 1992; Jet Dynamics home page; USPTO name searches Oct 2026; Group K Between the Lines 1997; Group K Kawasaki 750 racing page; USPTO record serial 73670189; USPTO record serial 74532701; Worx Racing Components About page 2026; ABN Lookup Worx Racing Components

Traction mats: Hydro-Turf and what a document holds of its start

Confirmed

The HYDRO-TURF mark for watercraft mats first appears in the register on 1 October 1990, when Pacific Creations, Inc., a California corporation, applied for synthetic foam non-slip floor mats for use on watercraft, claiming first use on 3 May 1990; an earlier mark of the same words, for landscape sprayers, registered in 1977 and cancelled in 1983, names a different owner and different goods. The mark registered on 24 March 1992 and has been renewed three times, the last in 2021. A directory of 2015 lists Pacific Creations Inc with the trade name Hydro-Turf in Anaheim, and its search highlights print Arno Olbricht as president in that entry; the association's lists of 2005 and 2017 name Hydro-Turf under the same town. In October 1992 the same registrant applied for a design mark for foam non-slip deck and floor pads for personal watercraft, sailboats and sail-equipped surfboards; it was cancelled in 2000. Hydro-Turf's own page says the company began in the 1980s as Jet Strip and relaunched as Hydro-Turf in 1990 under its president, Arno Olbricht, and The Watercraft Journal wrote in July 2014 that the brand was once known as Jet-Strip before its official launch in 1990. No registry record holds the name Jet Strip for mats: the one JET-STRIP mark in the register is a paint remover filed in 1960 (searched 2026-10-06), so the earlier company rests on the company's page and two trade articles that may repeat it: Powersports Business wrote in February 2013 that Jet Strip was bought and became Hydro-Turf after a switch to EVA foam. Marks of a corporation of the same name, filed in 1982 and 1985, are for sweaters and shirts, and the records do not show whether it was the same business. Later documents add dates. A Polaris design patent filed on 13 February 2003 cites photographs of May 2003 of footwell pad specimens received from Hydro-Turf of Anaheim, which it calls a distributor of various watercraft accessories. The company's page and the Watercraft Journal both date the HT Moto line to 2008; HYDRO TURF, LLC of Florida registered HYDRO-TURF in 2022 for fitted seat covers for marine vehicles, claiming first use of those goods on 1 December 2008, and claimed ownership of the 1990 registration, whose record now names that company as owner. The association's post of 25 November 2024 also names Hydro-Turf as part of a group that includes Short Block Technologies. Powersports Business and The Watercraft Journal reported in October 2020, printing the same release, that Greg Pickren had acquired Hydro-Turf from Arno Olbricht, whom the release calls its founder, and that the company would move to Clearwater, Florida, in the first quarter of 2021. The company's page says it moved there in 2021.

Sources: USPTO record serial 74101856; USPTO record serial 74322960; USPTO record serial 97117442; USPTO record serial 97117445; Harris directory 2015; IJSBA associate directory 2005; IJSBA associate members page; Hydro-Turf About page 2026; WCJ Hydro-Turf visit 2014; US design patent D485799; USPTO name searches Oct 2026; IJSBA SBT lead title sponsor 2025 and 2026; Powersports Business Hydro-Turf sale 2020; Watercraft Journal Hydro-Turf sale 2020; Powersports Business Hydro-Turf 2013

The patents of the parts trade

Likely

Sixteen US patents whose records are held can be read as the work of five makers, by an assignee's or an inventor's name: eight Solas, four Jet Dynamics, two R&D, and one each Ocean Pro and Factory Pipe. They were filed between 6 September 1988 and 28 November 2006, fifteen of them by 1998. Twelve are utility patents and four are designs, for a ride plate, a skid plate, an intake grate and a fluid flow directing element. Seven of the twelve concern impellers, stators or propulsion systems, all naming Yeun-Junn Lin or, in two, Solas Y. J. Lin, whom the archive reads as the same inventor; four concern intake gratings and toploaders, filed by Glenn Dickinson with Bill Chapin (1992, 1993), by Don Moyle with Glen Dilworth (1991) and by Solas Y. J. Lin (1994); and one, by Ross Liberty (1998), concerns water injected into a two-stroke exhaust. The ride plate design of 1988 is in the name of Kenneth F. Klus, who registered the OCEAN PRO marks. Only Lin's filing of 28 November 2006 prints a company as assignee, Solas Science & Engineering. The other fifteen name individuals, so each tie is a reading from names, subjects and trademark records; the register holds a mark of 1993 for foiled gratings in the name of an individual trading as R & D Racing USA, which fits the Dickinson and Chapin patents without proving them. The Jet Dynamics reading rests on its mark record, which names the two partners, Glen L. Dilworth and Don R. Moyle, whom the patents name as inventors, and the R&D reading on the two names that R&D's own page of 1998 and Personal Watercraft's profile of 2008 give for the company. The patents cite one another: the Dickinson and Chapin grating patent, filed in 1992, lists the toploader patent read here as Jet Dynamics'; the Lin patent of 1994 lists both and sets its wing-shaped grating against them; the skid plate design read as Jet Dynamics' lists the ride plate design of 1988; and a BRP patent filed in 2013 lists the toploader patent and the Lin patent of 1994 among references cited by its applicant. Of the sixteen, the only one filed after 1998 is the Solas patent of 2006. Google Patents, queried on 6 October 2026 for the assignee Solas Science, returns 68 patent documents filed from 1996 to 2025, eight of them US documents filed from 2001 to 2020 and titled for propellers, propulsion systems and an electric outboard drive; the list omits US 7,270,583, so it undercounts, and the site stopped answering before assignee queries for the other makers could be run. No patent turned up for Skat-Trak, Worx or Hydro-Turf (searched USPTO Patent Public Search and Google Patents by assignee and inventor name, 2026-10-05).

Sources: US design patent D317431; US design patent D325917; US patent 5114368; US design patent D335484; US design patent D366444; US patent 5234361; US patent 5281177; US patent 5116202; US patent 5451143; US patent 5509785; US patent 5540605; US patent 5871381; US patent 5876257; US patent 5975966; US patent 7270583; US patent 6026641; US patent 8905800; Google Patents Solas assignee list; USPTO record serial 74349341; USPTO record serial 73670189; USPTO record serial 74529118; USPTO record serial 75174803; R&D Racing Products page 1998; Personal Watercraft on R&D 2008

The trademark records of the parts makers

Confirmed

The US trademark register was searched on 6 October 2026, and its records show a different pattern for each maker in this chapter. The register's goods text, searched with six queries for ride plates, intake grates, foiled gratings, impellers and jet pump systems, returned 85 records, among them marks of machine makers and of unrelated goods, so this section prints no total from them. First-use dates in these records are the owners' sworn claims, not findings. Ocean Pro's registrant filed the OCEAN PRO PRODUCTS mark in 1987 and its registration was cancelled in 2009 for want of an acceptable Section 8 declaration, while OCEAN PRO and VORTEX, both filed in 1994, have been renewed. The R&D marks show how long a registration can run. AQUAVEIN of 1993 and two marks of 1994 were each renewed once, in 2003 or 2005, and cancelled in 2016, 2017 and 2020; the corporation's flame arrester mark of 1995 was cancelled in 2003. A cancellation dates the end of a registration and not of a business: JET DYNAMICS was cancelled in 2004, and a page the company publishes, read on 5 October 2026, offers a toploader grate and a ride plate. Six of the 42 marks in Solas's name list jet pump systems among their goods, from 1995 to 2005, and five of the six were abandoned. Other Solas marks name impellers beside jet boats, among them AMITA of 1996 and IPOP of 2011, so the six are a count of one wording and not of every Solas mark that touches the pump. Among the records the goods queries returned, four marks, each from a different owner, come from firms that no other held text mentions apart from the register records themselves: SEANAIR of 1994, two JETLYNE marks of 1987 and 1995, and WAVEWERX of 2013 (searched the archive's mirror and research cache, 2026-10-06). Two names that other documents attach to the same parts have no mark in these searches. Among 51 hits for the token SKAT none carries Skat-Trak's name as wordmark or owner, and none of the WORX marks names watercraft goods, grates, ride plates or impellers or joins WORX to RACING or COMPONENTS (searched by wordmark and owner name, 2026-10-06). Marks in Australia, where Worx Racing Components trades, were not searched.

Sources: USPTO goods sweep Oct 2026; USPTO name searches Oct 2026; USPTO record serial 73670189; USPTO record serial 74613791; USPTO record serial 74532701; USPTO record serial 74349341; USPTO record serial 74512146; USPTO record serial 74512147; USPTO record serial 75013174; USPTO record serial 75174803; Jet Dynamics home page

Not covered, and why (7)

Solas was founded in 1985 by Dr. Solas Y. J. Lin.
The archive prints no founding history for Solas unless a primary document turns up. Only the company's own page says 1985, in its 2015 capture and its present profile. The earliest registry record found is the application of 7 December 1987 (USPTO trademark search, 2026-10-06, and TSDR, 2026-10-05), and Taiwan's company registry was not searched. The impellers and pumps section says whose claim the year is.
R&D is the oldest aftermarket manufacturer in the industry.
A superlative in Personal Watercraft's profile of April 2008 that cites no source. R&D's own page of 1998 says 1972, the profile itself dates its personal watercraft work to 1982, and other makers' sworn first-use claims in the register go back to 1978 (Ocean Pro, in an application abandoned in 1991) and 1983 (Seanair), so the ranking cannot be checked from the held documents (checked 2026-10-06).
More World and National Jet Sports Championships have been won with Skat-Trak impellers than all other impeller manufacturers combined.
Skat-Trak's own page of 1998 says it. It is a company's claim about itself, no held document tallies titles by impeller maker, and the sentence is a grade in effect, so it is not printed (checked 2026-10-06).
Skat-Trak has made products for more than 60 years, beginning with paddle tires, and began offering impellers by the early 1980s.
The first part is a trade writer's statement of 2014 with no source, and the brand's current page gives other dates of its own (1968 for snowmobile conversion kits, more than 70 years). The impellers and pumps section prints the 1980s sentence as the writer's statement only (checked 2026-10-06).
Hydro-Turf began in the 1980s as Jet Strip and relaunched under its present name in 1990.
Printed only as the company's account and two articles'. No registry record holds the name Jet Strip for mats, and the HYDRO-TURF application of 1 October 1990 is the earliest document held for mats (checked 2026-10-06).
Jet Dynamics was founded in 1990 and one partner acquired all rights to it in 1998.
Both statements are on the company's own page. The mark record claims first use on 30 April 1989, which is the owner's claim, and the earliest dated documents held are a patent application of 12 December 1989 and a newspaper caption of 8 March 1992 that says the partners have formed the company (checked 2026-10-06).
Worx Racing was established in 1996.
The company's own page is the only document that says so. The earliest printed date for Worx in any held document is a catalog page of 1 September 2009 listed in a patent record, and an undated Group K page about the Kawasaki SXi Pro 750 names a Worx ride plate and scoop grate (checked 2026-10-06).

What could not be read (9)

  • No document read dates Skat-Trak's founding or the year it began making impellers, beyond The Watercraft Journal's statements of 27 August 2014 (it began offering impellers by the early 1980s) and 21 December 2022 (the company has been a participant in the development of impellers and pumps since the 1980s), neither of which cites a source, and the brand's own page, which gives 1968 for snowmobile conversion kits and more than 70 years in business (searched the archive's mirror and research cache, 2026-10-06). No Skat-Trak trademark turned up under SKAT TRAK, SKATTRAK or SKAT-TRAK as wordmark or owner name (USPTO trademark search, 2026-10-06), and no patent turned up for it under its name or its president's (searched USPTO Patent Public Search and Google Patents by assignee and inventor name, 2026-10-05).
  • No registry or period document held dates Solas before its trademark application of 7 December 1987, so the 1985 founding stays the company's claim. Taiwan's company registry was not searched, and the printed texts of Solas's patents were not read, so their subjects are described from the titles and abstracts in USPTO records (checked 2026-10-06).
  • R&D's own page of 1998 says the company was established in 1972, Personal Watercraft's profile of April 2008 dates its personal watercraft work to 1982 and a principal's arrival to the end of 1987, and The Watercraft Journal of 5 September 2018 says over 30 years, so the grates and plates section prints no start year for R&D (checked 2026-10-06). The earliest dated R&D trademark record held is the AQUAVEIN application of 19 January 1993, with first use claimed for 16 December 1992, and a grating patent filed on 10 November 1992 that the chapter reads as R&D's names no company.
  • The founding of Jet Dynamics in 1990, and the acquisition of all rights by one partner in 1998, rest on the company's own page. The mark record claims first use on 30 April 1989, and the earliest dated filing held is a related patent application of 12 December 1989. The Times-News of 8 March 1992 says only that the two partners have formed the company. The drawings of the three design patents were not read, so no shape is described (checked 2026-10-06).
  • The year 1996 and the claim of Australian manufacture for Worx Racing Components rest on the company's own page. No mark or patent turned up in the US register or in the patent searches of 2026-10-05 and 2026-10-06, and the registers of Australia, Taiwan and Europe were not searched. An Australian news post about a change of owner of Worx, first captured by the Wayback Machine on 2012-12-01, gave no readable text when it was saved during research, so it is a lead and not a source.
  • Hydro-Turf's own page, a Powersports Business feature of February 2013 and one article of July 2014 name the earlier company Jet Strip, and both articles may repeat the company's telling; no registry record holds the name for mats. Whether the Pacific Creations, Inc. that filed marks for sweaters and shirts in 1982 and 1985 is the same business as the HYDRO-TURF registrant of 1990, which bears the same name, is not shown by any document held. No document held other than the company's page says when it moved to Clearwater, Florida; the reports of October 2020 say only that it would, and the register logs a change of owner address on 8 March 2021 and prints no address (checked 2026-10-06; the reports read 2026-10-07).
  • The assignee searches for Skat-Trak, Worx Racing Components, R&D and Jet Dynamics could not be repeated on 2026-10-06, because Google Patents refused further queries after about ten. The statement that no patent turned up for Skat-Trak, Worx or Hydro-Turf therefore rests on the searches of 2026-10-05, whose result lists are not held.
  • The goods-text search of the US register on 2026-10-06 used six queries and returned 85 records, among them marks of machine makers and of unrelated goods, and this chapter prints no total from them. The queries did not return every mark that names these parts: seven Solas marks whose goods name impellers beside jet boats (AMITA, RUBEX, IPOP, PROL3, PROL4, a SOLAS mark of 2019 and HYDRO JET) were not among them. Marks that name other parts (mats, hulls, pipes, steering) or use other words, and every mark outside the US, are not covered. The 397 records for the token WORX were not listed and were tested with targeted queries.
  • Group K's two comment pages are the shop's current pages, and no earlier capture of them is held, so their dating rests on their headings and issue-by-issue layout; the Wayback Machine's index, as saved during research, lists only a 2005 capture of the shop's old About page (checked 2026-10-06).

People on record (11)

Each has a page on Key Figures, named for a public role a document records.

Documents cited in this chapter

  • Skat-Trak About page 1998 (web.archive.org): About Skat-Trak, skat-trak.com (Wayback capture of 6 February 1998), Skat-Trak Performance Products; manufacturer primary, medium. The company's own page, closing with the names of Ken and Diane Stuart. Medium for who signed for the company in 1998; its claims about its championships are the company's own and are not relied on by any page (2026-10-05).
  • Group K Between the Lines 1996 (groupk.com): Between The Lines - 1996 (Group K, groupk.com), Group K, 1996; enthusiast media, medium. A tuning shop's comments on the technical items in the PWC magazines of 1995 and 1996, issue by issue, kept on the shop's site under the heading 1996. Read on 2026-10-05 and held as text. It is the shop's current page and no earlier capture is held, so the dating rests on the heading and on the issue-by-issue layout. Medium as a trade participant's period commentary: the shop sells engine kits and names the parts it uses, and its opinions of other makers' parts are not relied on. Cited only for which products it names as existing. The shop's telephone number and street address are removed from the held copy.
  • Group K Between the Lines 1997 (groupk.com): Between The Lines - January 97 to December 97 (Group K, groupk.com), Group K, 1997; enthusiast media, medium. The same shop's comments on the technical items in the PWC magazines of 1997, issue by issue, kept on its site under the heading January 97 to December 97. Read on 2026-10-05 and held as text; the page is current and no earlier capture is held, so the dating rests on the heading and the issue-by-issue layout. Medium as a trade participant's period commentary, cited only for which products it names as existing. (as Group K Between the Lines 1996 above)
  • Watercraft Journal Skat-Trak visit 2014 (watercraftjournal.com): Spin Doctors: Inside Skat-Trak Performance Products, by Kevin Shaw (The Watercraft Journal, 27 August 2014), The Watercraft Journal, 2014-08-27; enthusiast media, medium. A visit to the company's Calimesa headquarters. Medium as trade press for what the author saw and was told; the company's account of its own age and history is low. Two paragraphs about the author's family are replaced in the held copy and nothing from them is used.
  • Watercraft Journal Skat-Trak 2022 (watercraftjournal.com): Skat-Trak Closes its Personal Watercraft Division, by Kevin Shaw (The Watercraft Journal, 21 December 2022), The Watercraft Journal, 2022-12-21; enthusiast media, medium. The magazine's report of the end of the company's personal watercraft division, with the letter signed by its president printed in full. The letter gives 9 December 2022 as the last day of sales and lack of sales, overseas production and the poor economy as the reasons; the editor's own paragraph adds other causes in the magazine's voice. Medium as trade press; the letter inside it is the company's voice. The editor's address is replaced in the held copy.
  • IJSBA associate directory 2005 (web.archive.org): IJSBA associate members, corporate member directory (Wayback capture of 9 March 2005), International Jet Sports Boating Association, 2005-03-09; sanctioning body, high. The association's own list of companies holding associate membership, as its site showed it on 9 March 2005, each with an address and most with a named contact. High for which companies the association listed and whom it named for each; it gives no title or office for a contact. Phone numbers and email addresses are replaced in the held copy.
  • IJSBA associate members page (ijsba.com): IJSBA Associate Members (IJSBA page), International Jet Sports Boating Association, 2017-03-21; sanctioning body, high. The association's current list of associate members, read live on 5 October 2026; the page carries a last-modified stamp of 21 March 2017, which is the date given here. High for whom the association lists; it gives no office for a named contact. (as IJSBA associate directory 2005 above)
  • USPTO record serial 73699150 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 73699150, registration 1515304 (SOLAS), United States Patent and Trademark Office, 1988-12-06; government, high. SOLAS, filed 7 December 1987, registered 6 December 1988 and renewed, for marine propellers. First use claimed for 1 April 1987. Owner Solas Science & Engineering Co., Ltd., a Taiwan corporation. The published date is the registration date. Email addresses of a law firm are replaced in the held copy.
  • USPTO record serial 74729508 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74729508 (JETPRO), United States Patent and Trademark Office, 1995-09-15; government, high. JETPRO, filed 15 September 1995 and abandoned on 6 May 1997 after no response to an Office action, for jet pump systems or units and their parts for use in watercraft, boat and aircraft. Never registered; the published date is the filing date. (as USPTO record serial 73699150 above)
  • USPTO record serial 75500174 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 75500174 (GOLD PRO), United States Patent and Trademark Office, 1998-06-11; government, high. GOLD PRO, filed 11 June 1998 and abandoned on 28 June 2001 because no statement of use was filed, for marine propellers and impellers and jet pump systems for watercraft, boat and aircraft. Owner Solas Science & Engineering Co., Ltd. (as USPTO record serial 74729508 above)
  • USPTO record serial 78693648 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 78693648, registration 3167911 (SOLAS), United States Patent and Trademark Office, 2006-11-07; government, high. SOLAS, filed 16 August 2005, registered 7 November 2006 and renewed, for jet pump systems of driving shafts, intake grates, intake tracts, impellers, stators and jet nozzles for use in marine vehicles, with mechanical and hydraulic controls. First use in commerce claimed for 19 September 1998. (as USPTO record serial 73699150 above)
  • Solas about page 2015 (web.archive.org): About Solas (solaspropellers.com, Wayback capture of October 2015), Solas (company site); manufacturer primary, low. The company's own About page, read on 22 September 2026 from a capture of 4 October 2015, abridged at the time ([...] in the held text) and followed by a note added when it was saved, which is not the company's text. Low: its founding year and founder are the company's own account of its history.
  • Solas company profile 2026 (solas.com): Company Profile - SOLAS (solas.com, read 2026), Solas Science & Engineering Co., Ltd.; manufacturer primary, medium. The company's own profile page, read on 2026-10-05, with a copyright line of 2017. It lists product lines, among them personal watercraft parts: impellers, jet pump, intake grates and accessories. Medium for which products the company lists. Its sentence on its founding is the company's account of its own history and is not relied on. Telephone and fax numbers, an email address and the street address are replaced in the held copy.
  • USPTO record serial 97543332 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 97543332, registration 7174016 (ADONIS), United States Patent and Trademark Office, 2023-09-26; government, high. ADONIS, filed 10 August 2022 and registered 26 September 2023, for personal watercraft engine parts, namely impellers. First use claimed for 2 August 2016. Owner Short Block Technologies, Inc., a Florida corporation. (as USPTO record serial 73699150 above)
  • IJSBA SBT title sponsor 2023 and 2024 (ijsba.com): IJSBA Announces Short Block Technologies As Title Sponsor For 2023 And 2024 World Finals (IJSBA news post, 16 May 2023), International Jet Sports Boating Association, 2023-05-16; sanctioning body, high. The association's announcement, read on 2026-10-05, that Short Block Technologies signed as title sponsor of the 2023 and 2024 World Finals. High for the sponsorship; the praise it prints for the sponsor, and the list of companies it says the sponsor's group owns, are not used.
  • IJSBA SBT lead title sponsor 2025 and 2026 (ijsba.com): Short Block Technologies Signs As 2025 And 2026 World Finals Lead Title Sponsor (IJSBA news post, 25 November 2024), International Jet Sports Boating Association, 2024-11-25; sanctioning body, high. The association's announcement, read on 2026-10-05, of the lead title sponsor for the 2025 and 2026 World Finals. It also says the sponsor had signed to supply new powertrains to Lee Stone Products' turnkey Revolver S1 freestyle watercraft. High for what the association says; the sponsor's own descriptions are not used.
  • Watercraft Journal SBT dyno 2016 (watercraftjournal.com): Gallery: Inside SBT, Inc.'s 4-Stroke Engine Dyno Facility, by Brent Venderley (The Watercraft Journal, 16 March 2016), The Watercraft Journal, 2016-03-16; enthusiast media, medium. A shop-tour feature on a Clearwater, Florida engine remanufacturer, which says in the magazine's own voice that its named founder started it in 1997 and built it into a family of watercraft businesses, and quotes its President on the dyno. Medium as trade press for who is named and in what role; the founding story reads like the company's telling, and the superlatives (largest supplier, number one) are not used. The held copy omits site menus.
  • USPTO record serial 74349341 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74349341, registration 1794865 (AQUAVEIN), United States Patent and Trademark Office, 1993-09-28; government, high. AQUAVEIN, filed 19 January 1993, registered 28 September 1993, renewed 12 August 2003 and cancelled 12 February 2016 under Section 8, for foiled gratings for personal watercraft. First use claimed for 16 December 1992. The owner is an individual, with the trade name R & D Racing USA printed in the record. Street addresses, the attorney and the correspondent are replaced in the held copy. (as USPTO record serial 73699150 above)
  • USPTO record serial 74512146 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74512146, registration 1907259 (R&D RACING PRODUCTS U.S.A.), United States Patent and Trademark Office, 1995-07-25; government, high. R&D RACING PRODUCTS U.S.A. (a mark with words and a design), filed 11 April 1994, registered 25 July 1995, renewed 15 April 2005 and cancelled 4 December 2017 under Section 8, for personal water craft parts, namely foiled jet gratings. First use claimed for 24 October 1993. The owner is an individual. (as USPTO record serial 73699150 above)
  • USPTO record serial 74512147 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74512147, registration 1908341 (R&D), United States Patent and Trademark Office, 1995-08-01; government, high. R&D (a design mark), filed 11 April 1994, registered 1 August 1995, renewed 19 April 2005 and cancelled 10 April 2020 under Section 8, for personal water craft parts, namely foiled jet gratings. The owner is an individual. (as USPTO record serial 73699150 above)
  • USPTO record serial 75013174 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 75013174, registration 2031861 (PRO FLOW POWER PLENUM R&D RACING PRODUCTS U.S.A.), United States Patent and Trademark Office, 1997-01-21; government, high. PRO FLOW POWER PLENUM R&D RACING PRODUCTS U.S.A., filed 1 November 1995, registered 21 January 1997 and cancelled 27 August 2003 under Section 8, for a flame arrester for personal watercraft. First use claimed for 20 July 1995. The owner is R & D Racing Products U.S.A., Inc., a California corporation. (as USPTO record serial 73699150 above)
  • Personal Watercraft on R&D 2008 (personalwatercraft.com): Catching up with R&D Performance Products, by Vasilis Moraitis (PersonalWatercraft.com, 21 April 2008), PersonalWatercraft.com, 2008-04-21; enthusiast media, medium. A trade visit to R&D. Dates its personal watercraft work from 1982, has Bill Chapin joining by the end of 1987 for research and development and Glenn Dickinson running manufacturing and marketing. The page also shows an update date of 29 April 2016. Its author also runs jetskiworld.gr, so the two are not independent of each other.
  • US patent 8905800 (patents.google.com): US patent 8,905,800, Inlet grate for a water jet propulsion system (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 2014-12-09; government, high. Assigned to BRP US Inc., filed 18 July 2013 with a related application of 31 August 2009, granted 9 December 2014. Cited here for what its applicant listed as references: US 5,114,368 and US 5,540,605, and web pages the applicant dates, among them an Aquavien Pro shoe and grate of 2002, an R&D grate of 2004 and a Riva Yamaha GPR race grate and pump shoe of 11 May 2001. The record does not hold the pages.
  • US patent 7794294 (patents.google.com): US patent 7,794,294, Water intake grill for personal watercraft (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 2010-09-14; government, high. Filed 25 February 2009 with related applications of 2 October 2007 and 21 April 2009, granted 14 September 2010, one individual inventor, no assignee printed. Cited here only for its other-references list, which names three online catalog pages dated 1 September 2009 for R&D Aquavein, Worx Racing Maxiloader, Solas, UMI Racing and other intake grates. The record does not hold those pages.
  • US patent 5114368 (patents.google.com): US patent 5,114,368, Shaft shielding top loader (USPTO record), United States Patent and Trademark Office, 1992-05-19; government, high. Filed 1 April 1991 with a related application of 12 December 1989, granted 19 May 1992, inventors printed as Moyle; Don R. and Dilworth; Glendon L., no assignee. Two claims for a top loading plate in a jet pump's water inlet with a partition that shields the impeller drive shaft. Held as the USPTO Patent Public Search record; the link is the Google Patents page.
  • US patent 5234361 (patents.google.com): US patent 5,234,361, Foiled grating for jet watercraft (USPTO record), United States Patent and Trademark Office, 1993-08-10; government, high. Filed 10 November 1992, granted 10 August 1993, inventors printed as Dickinson; Glenn and Chapin; William D., no assignee. Seven claims for an intake grating whose foil, carried on two lengthwise bars, divides the intake channel. The held text is the USPTO Patent Public Search record read on the accessed date (street addresses removed from the held copy); the link is the public Google Patents page for the same patent. It names no company, so tying it to R&D is an inference.
  • Times-News 8 March 1992 (archive.org): The Times-News (Twin Falls, Idaho), 8 March 1992, article on Jet Dynamics (archive.org OCR excerpt), The Times-News, issue held by the Internet Archive, 1992-03-08; editorial, medium. A local newspaper's report, in raw column-interleaved OCR, that Glen Dilworth and Don Moyle, veteran jet boat racers, formed Jet Dynamics to make and market their inventions. Only phrases the OCR prints whole are used. Passages not used are removed from the held copy.
  • Jet Dynamics home page (jet-dynamics.com): Jet Dynamics home page (jet-dynamics.com, read 2026), Jet Dynamics; manufacturer primary, low. The company's own page, copyright 2023, giving its founding in 1990 by Glen Dilworth and Don Moyle and naming its products as patented. Low, as a company's account of its own history; used only beside an independent source. Contact details are removed from the held copy.
  • USPTO name searches Oct 2026 (tmsearch.uspto.gov): USPTO tmsearch records, name searches for the parts makers (read 2026-10-06), United States Patent and Trademark Office, 2026-10-06; government, high. Our extract of USPTO's trademark search records for name searches run on 2026-10-06: Skat-Trak spellings, WORX, R&D and AQUAVEIN, Jet Dynamics, Ocean Pro, Hydro-Turf and Pacific Creations, JET STRIP, Solas and others, each with the total the search reported, and the records for the marks that exist. High for what the register records; a query with no hits is recorded as no records, which is an absence in this register and no other.
  • Group K Kawasaki 750 racing page (groupk.com): Kawasaki SXI Pro 750, Racing Mods (Group K page), Group K; manufacturer primary, medium. The shop's page for its kits for the Kawasaki 750 stand-up, written about 2002: a preface on a 2001 relationship with Kawasaki's race team, the exhaust section that defines the shop's use of dry for a Factory Pipe pipe, and the kit lists. Medium as a seller's description of products it sells; its relationship claims are the shop's own and no Kawasaki document is held. The held copy omits the site menus and replaces the phone number in place; its prices are not used.
  • USPTO record serial 73670189 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 73670189, registration 1517776 (OCEAN PRO PRODUCTS CA., U.S.A.), United States Patent and Trademark Office, 1988-12-27; government, high. OCEAN PRO PRODUCTS CA., U.S.A., filed 6 July 1987, registered 27 December 1988, cancelled 1 August 2009 under Section 8, for marine engine parts and parts for single-person jet boats including ride plates and flame arrestors. Registrant and owner KLUS, KENNETH F., an individual. The first use claimed, 1 May 1980, is the registrant's sworn claim.
  • USPTO record serial 74532701 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74532701, registration 2046925 (VORTEX), United States Patent and Trademark Office, 1997-03-25; government, high. VORTEX, filed 3 June 1994, registered 25 March 1997, renewed, for flame arrestors for personal watercraft engines. Registrant KLUS, KENNETH F.; current owner Atlantis Investments, Inc. The first use claimed, 28 April 1988, is the registrant's sworn claim.
  • Worx Racing Components About page 2026 (worx.com.au): WORX Racing Components About Us (worx.com.au, read 2026), Worx Racing Components; manufacturer primary, low. The company's own About page, read on 2026-10-05: Worx Racing established in 1996, a head office and manufacturing on Australia's Gold Coast and a warehouse in Riverside, California. Low, because the year of establishment is the company's own claim and nothing independent in the held documents dates it; cited only as that claim and for where it says it makes its parts.
  • ABN Lookup Worx Racing Components (abr.business.gov.au): ABN Lookup, ABN 15 003 593 360, business name Worx Racing Components (Australian Business Register), Australian Business Register, 2026-10-05; government, high. A business registry record extracted on 2026-10-05: an Australian private company with an ABN active from 21 April 2000, and the business name Worx Racing Components registered from 2 November 2023. The register stopped collecting trading names in May 2012. High for what it records; it dates the registration of an entity and a name, not the start of any product line.
  • USPTO record serial 74101856 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74101856, registration 1680461 (HYDRO-TURF), United States Patent and Trademark Office, 1992-03-24; government, high. HYDRO-TURF, filed 1 October 1990, registered 24 March 1992, with a Section 8 declaration accepted in 1997 and renewals in 2002, 2012 and 2021, for synthetic foam non-slip floor mats for use on watercraft vehicles. First use claimed for 3 May 1990. The registrant is Pacific Creations, Inc., a California corporation; the current owner is HYDRO TURF, LLC, a Florida company, after an ownership update entered on 28 October 2020. (as USPTO record serial 73699150 above)
  • USPTO record serial 74322960 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74322960, registration 1803327 (Pacific Creations design mark), United States Patent and Trademark Office, 1993-11-09; government, high. A design mark without words, filed 15 October 1992, registered 9 November 1993 and cancelled 23 December 2000 under Section 8, for synthetic foam non-slip deck and floor pads for use on water related sports vehicles, such as personal water craft, sailboats, jet skis and sail-equipped surfboards. First use claimed for 15 December 1990. Owner Pacific Creations, Inc., a California corporation. (as USPTO record serial 73699150 above)
  • USPTO record serial 97117442 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 97117442, registration 6895052 (HYDRO-TURF 2021 application), United States Patent and Trademark Office, 2022-11-08; government, high. HYDRO-TURF, filed 10 November 2021 and registered 8 November 2022, for fitted seat covers for marine vehicles (first use claimed for 1 December 2008), stickers, duffle bags, and hats and t-shirts (first use claimed for 1 December 1990). The record claims ownership of registration 1680461. Owner HYDRO TURF, LLC, a Florida limited liability company. (as USPTO record serial 73699150 above)
  • USPTO record serial 97117445 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 97117445, registration 6923497 (HT HYDRO-TURF), United States Patent and Trademark Office, 2022-12-13; government, high. HT HYDRO-TURF (a mark with words and a design), registered 13 December 2022, for fitted seat covers for marine vehicles and t-shirts, first use claimed for 1 December 2008. (as USPTO record serial 73699150 above)
  • Harris directory 2015 (archive.org): Harris Southern California Business Directory and Buyer's Guide 2015 (Mergent; archive.org full-text search highlights), Mergent Business Press, item held by the Internet Archive, 2015; editorial, medium. A lending-library item, so only search highlights could be read. Entries for Skat-Trak Inc (Ken Stuart, President) and R & D Racing Products USA Inc (Glenn Dickinson, President; the Vice President's name garbled by the OCR), and Pacific Creations Inc, also called Hydro-Turf, in Anaheim (Arno Olbricht, President). The held copy shares a file with the 2016 edition's highlights and has its phone numbers removed.
  • Hydro-Turf About page 2026 (hydroturf.com): About Hydro-Turf (hydroturf.com, read 2026), Hydro-Turf; manufacturer primary, low. its roots in the 1980s under the name Jet Strip, a relaunch as Hydro-Turf in 1990, a motorcycle line in 2008 and a move to Clearwater, Florida in 2021. Low, because it is the company's account of its own history, and cited only as that. A telephone number, an email address and street addresses are replaced in the held copy. (as Worx Racing Components About page 2026 above)
  • WCJ Hydro-Turf visit 2014 (watercraftjournal.com): Getting a Grip: Inside Hydro-Turf Headquarters, by Kevin Shaw (The Watercraft Journal, 29 July 2014), The Watercraft Journal, 2014-07-29; enthusiast media, medium. A trade-press report of a visit to the Anaheim headquarters. Medium for what it saw. Its sentences that the brand was once known as Jet-Strip before an official launch in 1990, and that a line was added in 2008, echo the company's own account and may repeat it, so they are cited as the writer's statements. An email address is replaced in the held copy.
  • US design patent D485799 (patents.google.com): US design patent D485,799, Watercraft footwell pad pattern (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 2004-01-27; government, high. Assigned to Polaris Industries Inc., filed 13 February 2003, granted 27 January 2004. Cited here only for its other-references line, photographs taken in May 2003 of footwell pad pattern specimens received from Hydro-Turf of Anaheim, California, which it calls a distributor of various watercraft accessories.
  • Powersports Business Hydro-Turf sale 2020 (powersportsbusiness.com): Major acquisition in PWC accessories business (Powersports Business, 26 October 2020), Powersports Business, 2020-10-26; editorial, medium. A trade-magazine news item on the sale of Hydro-Turf to a Florida owner of other watercraft and marine brands, with quotes from both sides and a closing paragraph that says the company was founded in 1990 by its founder. The same quotes are printed as a press release in The Watercraft Journal four days earlier, so the two are not independent. Medium as trade press. The held copy omits site menus and related-article links and replaces the editor's address.
  • Watercraft Journal Hydro-Turf sale 2020 (watercraftjournal.com): Hydro-Turf Acquired by Greg Pickren of SBT, Inc., Watercraft Superstore, by Kevin Shaw (The Watercraft Journal, 22 October 2020), The Watercraft Journal, 2020-10-22; enthusiast media, medium. The magazine's report of the sale, with the press release printed in full. The editor's lead says the sale ends the founder's position as CEO; the release itself calls him the founder. Medium as trade press; the release is the parties' voice, and the editor's praise of the brand is not used. (as Watercraft Journal SBT dyno 2016 above)
  • Powersports Business Hydro-Turf 2013 (powersportsbusiness.com): Hydro-Turf retains traction in challenging industry (Powersports Business, 9 February 2013), Powersports Business, 2013-02-09; editorial, medium. A trade-magazine feature built on an interview with a person the held text calls Arno in one place and Olbricht in others, never together (reading them as one person is the archive's inference), who is quoted throughout and given no title. Its history paragraph says Jet Strip was a pad company that the person called Arno bought and renamed Hydro-Turf after a change of material. Medium as trade press; the history is the interviewee's telling and its superlatives and sales shares are not used. One sentence about the earlier owner is replaced in the held copy (family and personal details) and nothing from it is used.
  • US design patent D317431 (patents.google.com): US design patent D317,431, Jet ski ride plate (USPTO record), United States Patent and Trademark Office, 1991-06-11; government, high. Filed 6 September 1988, granted 11 June 1991, inventor printed as Klus; Kenneth F., no assignee. One claim, the ornamental design for a jet ski ride plate as shown and described; the drawings were not read. It names no company. (as US patent 5114368 above)
  • US design patent D325917 (patents.google.com): US design patent D325,917, Fluid flow directing element for watercraft (USPTO record), United States Patent and Trademark Office, 1992-05-05; government, high. Filed 29 March 1991 with a related application of 12 December 1989, granted 5 May 1992, inventors printed as Moyle; Don R. One claim, the ornamental design as shown and described; the drawings were not read. (as US patent 5114368 above)
  • US design patent D335484 (patents.google.com): US design patent D335,484, Watercraft skid plate (USPTO record), United States Patent and Trademark Office, 1993-05-11; government, high. Filed 7 October 1991, granted 11 May 1993, inventors printed as Moyle; Don R. Its one US reference is Klus's D317,431. (as US patent 5114368 above)
  • US design patent D366444 (patents.google.com): US design patent D366,444, Jet-pump watercraft intake grate (USPTO record), United States Patent and Trademark Office, 1996-01-23; government, high. Filed 13 October 1994, granted 23 January 1996, inventors printed as Dilworth; Glendon L. and Moyle; Don R., no assignee. (as US patent 5114368 above)
  • US patent 5281177 (patents.google.com): US patent 5,281,177, Foiled grating for jet watercraft (USPTO record), United States Patent and Trademark Office, 1994-01-25; government, high. Filed 5 August 1993 with a related application of 10 November 1992 (the filing date of 5,234,361), granted 25 January 1994, inventors printed as Dickinson; Glenn and Chapin; William, no assignee, five claims. (as US patent 5114368 above)
  • US patent 5116202 (patents.google.com): US patent 5,116,202, Impeller (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1992-05-26; government, high. Filed 25 July 1990, granted 26 May 1992, inventor Yeun-Junn Lin, no assignee. The held text is USPTO's Patent Public Search record (address fields removed from the held copy), with abstract, two claims and description; the link goes to Google Patents' page for the same patent. The printed patent was not read.
  • US patent 5451143 (patents.google.com): US patent 5,451,143, Motorboat impeller (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1995-09-19; government, high. Filed 26 April 1994, granted 19 September 1995, inventor printed Solas Y. J. Lin, no assignee. The held text is USPTO's Patent Public Search record; the link goes to Google Patents. (as US patent 5116202 above)
  • US patent 5509785 (patents.google.com): US patent 5,509,785, Impeller of motorboat (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1996-04-23; government, high. Filed 26 April 1994, granted 23 April 1996, inventor printed Solas Y. J. Lin, no assignee. (as US patent 5116202 above)
  • US patent 5540605 (patents.google.com): US patent 5,540,605, Water inlet foil grating of motorboat (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1996-07-30; government, high. Filed 15 July 1994, granted 30 July 1996, inventor printed Solas Y. J. Lin, no assignee. Its references include US 5,114,368 and US 5,234,361, and its description sets it against the grating of the latter. (as US patent 5116202 above)
  • US patent 5871381 (patents.google.com): US patent 5,871,381, Stator of propelling system of small powerboat (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1999-02-16; government, high. Filed 17 July 1997, granted 16 February 1999, inventor Yeun-Junn Lin, no assignee. (as US patent 5116202 above)
  • US patent 5876257 (patents.google.com): US patent 5,876,257, Stator of propelling system of small powerboat (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1999-03-02; government, high. Filed 8 September 1997, granted 2 March 1999, inventor Yeun-Junn Lin, no assignee. (as US patent 5116202 above)
  • US patent 5975966 (patents.google.com): US patent 5,975,966, Propelling system of small boat (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 1999-11-02; government, high. Filed 17 November 1998, granted 2 November 1999, inventor Yeun-Junn Lin, no assignee. (as US patent 5116202 above)
  • US patent 7270583 (patents.google.com): US patent 7,270,583, High efficiency watercraft propulsion system (USPTO record), United States Patent and Trademark Office, read in Patent Public Search, 2007-09-18; government, high. Filed 28 November 2006, granted 18 September 2007, assignee Solas Science & Engineering Co., Ltd. The USPTO record prints the inventor field as "Yeun-Junn; Lin", family and given names in reverse of his earlier patents; Google Patents prints Lin Yeun-Junn. The held text is USPTO's Patent Public Search record. (as US patent 5116202 above)
  • US patent 6026641 (patents.google.com): US patent 6,026,641, Method and apparatus for improved control of exhaust gas temperature from a two-stroke engine (USPTO record), United States Patent and Trademark Office, 2000-02-22; government, high. Filed 2 February 1998, granted 22 February 2000, inventor printed as Liberty; Ross H., no assignee, five claims for water fed through a valve into a two-stroke exhaust with a means of smoothing its pulses. The background calls ECWI a system developed by the applicant. An earlier filing by another company covers electronically controlled water injection too, so no page calls this a first. (as US patent 5114368 above)
  • Google Patents Solas assignee list (patents.google.com): Google Patents result list, assignee Solas Science (read 2026-10-06), Google Patents, an index of patent documents, 2026-10-06; project research, medium. A list of 68 patent documents of all offices that Google Patents returned for the assignee Solas Science on 2026-10-06, with filing and grant dates and titles, held here as an extract. It is an index and a lower bound: it does not list US 7,270,583, whose USPTO record names the company as assignee. Medium for the count and the dates; the patents' own texts are not held.
  • USPTO record serial 74529118 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74529118, registration 1977631 (FACTORY PIPE), United States Patent and Trademark Office, 1996-06-04; government, high. FACTORY PIPE, filed 25 May 1994, registered 4 June 1996, renewed, for exhaust systems for recreational watercraft, motorcycles, snowmobiles and ultralight aircraft. Registrant and current owner Liberty, Ross H., an individual. The status view leaves the first-use field blank. Owner and correspondent addresses are removed from the held copy. (as USPTO record serial 73699150 above)
  • USPTO record serial 75174803 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 75174803, registration 2093209 (JET DYNAMICS), United States Patent and Trademark Office, 1997-09-02; government, high. JET DYNAMICS, filed 1 October 1996, registered 2 September 1997, cancelled 5 June 2004 under Section 8, for personal watercraft intake grates and ride plates. Owner Jet Dynamics, an Idaho partnership composed of Glen L. Dilworth and Don R. Moyle. (as USPTO record serial 73699150 above)
  • R&D Racing Products page 1998 (web.archive.org): About R&D, rd-performance.com (Wayback capture of 30 May 1998), R&D Racing Products, USA Inc.; manufacturer primary, medium. The company's welcome letter, signed Bill Chapin, President, and Glenn Dickinson/CEO. Medium for who signed for the company and with what title in 1998; its history (established in 1972) and its claims for its racing record are the company's own and no page relies on them.
  • USPTO goods sweep Oct 2026 (tmsearch.uspto.gov): USPTO tmsearch records, goods-text sweep for watercraft under-hull and pump parts marks (read 2026-10-06), United States Patent and Trademark Office, 2026-10-06; government, high. Our extract of USPTO's own trademark search records, read on 2026-10-06 through the search's JSON endpoint with a browser user agent. It prints the six goods-text queries, the rule by which 29 marks were kept from the 85 records returned, and each kept mark's dates, status, owner as printed and goods. High for what the register records. The count it supports is a count of what these queries returned, not of every mark in the trade.
  • USPTO record serial 74613791 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 74613791, registration 2005577 (OCEAN PRO), United States Patent and Trademark Office, 1996-10-08; government, high. OCEAN PRO, filed 22 December 1994, registered 8 October 1996, renewed, for marine engine parts and jet boat parts. Registrant KLUS, KENNETH F.; current owner Atlantis Investments, Inc., a California corporation. The record does not date the change of owner.

Changes to this chapter

  • 2026-10-07: The impeller and traction mat sections now name Greg Pickren, CJ Lammers and Arno Olbricht, and the grates and patents sections name Don Moyle, who have Key Figures records since the third set; the mat section adds the reported sale of Hydro-Turf in October 2020 and the 2013 feature that also names Jet Strip. The page now says under its banner that the BaddJet shop sells RIVA Racing parts, because a BRP patent cited in the grates and patents sections lists a Riva Yamaha race grate among its references.
Cite this page

“The aftermarket: pumps, plates, mats and the registers”, BaddJet archive, https://baddjetarchive.com/racing/history/aftermarket-pumps-plates-and-registers/

Add the date you read it.

Every chapter, or the same history era by era.

1987 to 2026 · 5 sections · 0 contested · 7 claims held back

Start
BaddJet Racing