Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321410 | Adaptive doppler DF system | William G. Guion | 1994-06-14 |
| 5032844 | Sky wave direction finder | Douglas N. Travers | 1991-07-16 |
| 4207572 | Sky wave DF antenna system | Douglas N. Travers, Terence C. Green, William Matthew Sherrill, Richard L. Johnson | 1980-06-10 |