Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7106876 | Microphone for simultaneous noise sensing and speech pickup | — | 2006-09-12 |
| 6788791 | Delay network microphones with harmonic nesting | Steven S. Smith, Mark Gilbert, Alan J. Usdrowski | 2004-09-07 |
| D492669 | Microphone grille (HF350/HF700) | Michael John Kilhefner, Steven R. Grosz | 2004-07-06 |