Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4297790 | Survey apparatus and method employing rate-of-turn and free gyroscopes | Donald H. Van Steenwyk, Paul Ott | 1981-11-03 |
| 4197654 | Survey apparatus and method employing all latitude, all attitude gyrocompassing | Donald H. Van Steenwyk, Paul Ott | 1980-04-15 |
| 4192077 | Survey apparatus and method employing rate-of-turn and free gyroscopes | Donald H. Van Steenwyk, Paul Ott | 1980-03-11 |