Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6687579 | Flexible and fault tolerant networked steering system | Ronald K. Richey, Johann-Peter Hoelting, Hayo Steiger, Uwe Gerhard Oldekop | 2004-02-03 |
| 6549831 | Rudder angle indicator system with active sector sensing | — | 2003-04-15 |
| 5107424 | Configurable marine steering system | Rebecca A. Bird, David A. Bennett, Albert L. Coleman, Jeffrey C. Johnson, Ronald K. Richey +3 more | 1992-04-21 |
| 4876651 | Digital map system | John Fredrick Dawson, III, James A. Cousens | 1989-10-24 |
| 4823287 | Digital contour line generator | — | 1989-04-18 |