Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6616412 | Tapered polygon coupling | Ronald L. Haugen, Robert King | 2003-09-09 | $31,550,000 |
| 6461111 | Tapered polygon coupling | Ronald L. Haugen, Robert King | 2002-10-08 | $14,896,000 |
| 5702491 | Portable hydrogen generator | Eugene Long, Frank Lynch | 1997-12-30 | $5,608,000 |
| 5593640 | Portable hydrogen generator | Eugene Long, Frank Lynch | 1997-01-14 | $4,460,000 |