Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6293351 | Rear mounted three point hitch adapter for motor vehicles | — | 2001-09-25 |
| 5771977 | Automatic trigger mechanism for portable fire extinguishers | — | 1998-06-30 |
| 5479150 | Bridge failure alarm | Douglas Lee Schmidt | 1995-12-26 |
| 4909211 | Barrel-type throttle valve for engine air intake | Valerie G. Caryer Cook | 1990-03-20 |
| 4322975 | Ultrasonic scanner | Ewell E. Stevens | 1982-04-06 |
| 4184062 | Laser resistance trimmer | — | 1980-01-15 |