Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6563934 | Mechanically tunable diaphragm using nickel titanium memory metal | Charles Burton Swope | 2003-05-13 |
| 5288955 | Wind noise and vibration noise reducing microphone | Greg A. Schladt, Martin E. Holmes | 1994-02-22 |
| 5204907 | Noise cancelling microphone and boot mounting arrangement | Bakulesh B. Patel, David H. Karl | 1993-04-20 |
| 4679233 | Microphone | Charles P. Richardson, Virgil F. Kuhl, Bernard Gasparaitis, Larry M. Krieg | 1987-07-07 |