Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7106866 | Active noise cancellation stability solution | John Astorino, Ian R. McLean | 2006-09-12 |
| 6295363 | Adaptive passive acoustic attenuation system | David W. Kapsos | 2001-09-25 |
| 5680337 | Coherence optimized active adaptive control system | Douglas G. Pedersen | 1997-10-21 |
| 5627747 | System for developing and operating an active sound and vibration control system | Douglas E. Melton, James E. Allard, Brian Finn, Jerry J. Trantow, Steven Popovich +2 more | 1997-05-06 |
| 5621803 | Active attenuation system with on-line modeling of feedback path | — | 1997-04-15 |
| 5386477 | Active acoustic control system matching model reference | Steven Popovich, Mark C. Allie | 1995-01-31 |