Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12278715 | Vector channel analyzer | — | 2025-04-15 |
| 8416295 | Surveillance data recording device and method | S. Bert Jones | 2013-04-09 |
| 5691978 | Self-cancelling full-duplex RF communication system | — | 1997-11-25 |
| 5029217 | Digital hearing enhancement apparatus | Douglas M. Chabries, Robert Brey, Martin Robinette, Richard W. Christiansen | 1991-07-02 |
| 4658426 | Adaptive noise suppressor | Douglas M. Chabries, Richard W. Christiansen, Douglas C. Lynn | 1987-04-14 |