Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659520 | Super short baseline navigation using phase-delay processing of spread-spectrum-coded reply signals | Marvin Lee Watson, Bretton Douglas, Chester DeWitt Loggins, Jr., Donald Owen Norris, Jr., Michael P. Wapner | 1997-08-19 |
| 5426617 | Long baseline tracking system | — | 1995-06-20 |
| 5008859 | Acoustic transponder receiver circuit | — | 1991-04-16 |
| 5008860 | Position and velocity measuring system | Thomas P. Riley, Martin Buffman | 1991-04-16 |
| 4924446 | Navigation system and method for determining the position of a relatively noisy platform using underwater transponders | — | 1990-05-08 |
| 4401987 | Ranging system having reduced recognition jitter | — | 1983-08-30 |