Yeun-Junn Lin

Named inventor on US patents of 1992 to 2007 for jet-pump parts of motorboats, among them an impeller and stators, the 2007 one assigned to Solas Science & Engineering.

At a glance

Role: Inventor
On the record: 9 years, from 1990 to 2007
Titles on the record: none read off a held results document yet
Companies: Solas (founded)
In the archive: 1 history chapter

The eras this page's records fall in are drawn solid; the others are hollow.

How we know: Each bar runs the years printed on that era's panel, and which eras a page falls in is the archive's grouping of its records, not the length of anyone's career.

Design and invention

2006 and 2007 · Confirmed

US patent 7,270,583, High efficiency watercraft propulsion system, filed on 28 November 2006 and granted on 18 September 2007, names him as inventor and Solas Science & Engineering Co., Ltd as assignee. Its first claim sets an impeller in a concavity formed in the hull with a stator behind it, and a later claim gives the nozzle a diameter only slightly less than the impeller's housing.

Sources: US patent 7270583

1990 and 1992 · Confirmed

US patent 5,116,202, Impeller, filed on 25 July 1990 and granted on 26 May 1992, names him as inventor. It claims an impeller for the nozzle of a motorboat whose leading end is a truncated cone, with a tool for screwing it to the shaft that drives it.

Sources: US patent 5116202

1997, 1998 and 1999 · Confirmed

Three later patents name him as inventor. US 5,871,381 and US 5,876,257, both titled Stator of propelling system of small powerboat, were filed in 1997 and granted in February and March 1999; each claims a stator behind the propeller leading into the nozzle of a boat's water channel. US 5,975,966, Propelling system of small boat, filed in 1998 and granted in November 1999, claims a gap between impeller blades and stator vanes that adjusts with the jet flow.

Sources: US patent 5871381; US patent 5876257; US patent 5975966

1995, 1996, 1999 and 2007 · Likely

Three patents of 1995 and 1996 print the inventor as Solas Y. J. Lin: US 5,451,143, Motorboat impeller, US 5,509,785, Impeller of motorboat, and US 5,540,605, Water inlet foil grating of motorboat. They print the same city as his patents of 1999 and 2007, and reading them as his rests on that, the initials and the subject, an inference. The grating patent lists US 5,234,361 among its references and sets its wing-shaped grating against that patent's grating.

Sources: US patent 5451143; US patent 5509785; US patent 5540605

Business

2007 · Likely

Solas's own About page, captured in October 2015, says the company was founded in 1985 by Dr. Solas Y. J. Lin and describes it as a maker of outboard and stern drive propellers. That is the company's own account. Reading its founder as the inventor of these patents rests on the same initials as above and on the 2007 patent's assignment to Solas Science & Engineering, a company of the same name, an inference.

Sources: Solas about page 2015; US patent 7270583

Names as printed

Solas Y. J. Lin (US patent 5451143); Dr. Solas Y. J. Lin (Solas about page 2015)

Elsewhere in the archive

History chapter: The aftermarket: pumps, plates, mats and the registers
Era: The early years, in print
Era: The makers and their machines
Era: The rule book years

What the archive has not read (4)

The printed patents were not read. The texts held are USPTO's Patent Public Search records, so the claims are described here rather than quoted (checked 2026-10-05).
No document read says whether any of these patents became a Solas product (checked 2026-10-05, the eight patents and the company's 2015 About page).
The founding year of 1985 rests on the company's own page; no registry or period document held dates the company's start (searched the archive's mirror and research cache, 2026-10-05).
Patents assigned to Solas Science & Engineering after 2007 turned up in the archive's patent searches and were not read (checked 2026-10-05).

Documents cited on this page

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. The printed patent was not read.
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. (as US patent 7270583 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. The held text is USPTO's Patent Public Search record; the link goes to Google Patents. (as US patent 7270583 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 7270583 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 7270583 above)
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. (as US patent 7270583 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 7270583 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 7270583 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.

Cite this page

“Yeun-Junn Lin”, BaddJet archive, https://baddjetarchive.com/key-figures/yeun-junn-lin/

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