Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5442713 | Microphone packaging scheme | Rebecca C. McNally | 1995-08-15 |
| 5204907 | Noise cancelling microphone and boot mounting arrangement | Bruce W. Staple, David H. Karl | 1993-04-20 |
| 4887690 | Speaker grille assembly | — | 1989-12-19 |
| 4721923 | Radio receiver speech amplifier circuit | Jaromir R. Bares, James H. Stangel | 1988-01-26 |
| 4511768 | Mounting arrangement for altering a microphone's frequency response | — | 1985-04-16 |