Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142919 | Multi-purpose low profile physical exercising device | — | 2000-11-07 |
| 5691711 | Digital electronic key and lock system | — | 1997-11-25 |
| 5272464 | Centralized automotive resource management system | — | 1993-12-21 |
| 5200066 | Oil spill collecting device with vortex generator | — | 1993-04-06 |
| 5107467 | Echo location system for vision-impaired persons | Otto A. Jorgensen | 1992-04-21 |
| 4907136 | Echo location system for vision-impaired persons | — | 1990-03-06 |
| 4378764 | Piston and combustion chamber with improved fuel circulation | — | 1983-04-05 |
| 4345575 | Ignition system with power boosting arrangement | — | 1982-08-24 |