Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961174 | High data rate continuous wave towed sonar | Willis A. Teel | 1990-10-02 |
| 4954999 | Double phase-lock-loop sonar | Willis A. Teel | 1990-09-04 |
| 4953143 | Multiple frequency synthetic aperture sonar | Francis J. Higgins, Chester DeWitt Loggins, Jr. | 1990-08-28 |