Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799163 | Autopilot with adaptive weather adjustment for marine vessels | — | 1989-01-17 |
| 4777602 | Digital autopilot controller for marine vessels | — | 1988-10-11 |
| 4692868 | Adaptive autopilot | John F. Yancey, Jr., Albert L. Coleman | 1987-09-08 |
| D272608 | Compass heading display | Gregory Schluge | 1984-02-14 |
| 4409639 | Solenoid driver circuit | — | 1983-10-11 |
| 4398353 | Compass data converter | — | 1983-08-16 |
| 4342274 | Steering failure alarm | William T. Spurgin | 1982-08-03 |