Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6327370 | Hearing aid having plural microphones and a microphone switching system | Mead C. Killion, Johannes Wittkowski, Richard Goode, Jont B. Allen | 2001-12-04 |
| 6101258 | Hearing aid having plural microphones and a microphone switching system | Mead C. Killion, Johannes Wittkowski, Richard Goode, Jont B. Allen | 2000-08-08 |
| 5524056 | Hearing aid having plural microphones and a microphone switching system | Mead C. Killion, Johannes Wittkowski, Richard Goode, Jont B. Allen | 1996-06-04 |
| 5488668 | Multiband programmable compression system | — | 1996-01-30 |
| 5278912 | Multiband programmable compression system | — | 1994-01-11 |
| 4882761 | Low voltage programmable compressor | — | 1989-11-21 |
| 4882762 | Multi-band programmable compression system | — | 1989-11-21 |
| 4868517 | Variolosser | Carlos A. Baez | 1989-09-19 |