Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5805635 | Secure communication system | Daniel E. Andrews, William E. Klund | 1998-09-08 |
| 5493612 | Secure communication keying system | William E. Klund, Woodrow H. Littrell, Richard G. Stephenson | 1996-02-20 |
| 4207625 | Doppler compensator for heterodyne correlation devices | William E. Klund, Woodrow H. Littrell | 1980-06-10 |
| 4203164 | Secure sonar communication system | William E. Klund, Woodrow H. Littrell, Richard G. Stephenson | 1980-05-13 |