Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352144 | Wind activated toy | — | 1994-10-04 |
| 5148410 | Sonar detector for exiting passengers | — | 1992-09-15 |
| 5106349 | Differential unit | John R. Botterill, Helmut Mildt | 1992-04-21 |
| 4796287 | Digital loudspeaking telephone | Gordon J. Reesor | 1989-01-03 |