Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11785375 | Precisely controlled microphone acoustic attenuator with protective microphone enclosure | Scott A. Moser, Vijay Parsa, Niamh C. Finnegan | 2023-10-10 |
| 11330374 | Head-gear mounted bone-conducting microphone | Jody DiLorenzo | 2022-05-10 |
| 8223996 | Moving armature receiver | Niels Beekman, Dennis Jacobus Mattheus Mocking | 2012-07-17 |
| 7912240 | Dual diaphragm electroacoustic transducer | Sietse Jacob van Reeuwijk | 2011-03-22 |
| 6366678 | Microphone assembly for hearing aid with JFET flip-chip buffer | Walter P. Sjursen, Christopher J. Poux, Richard Moroney, Ponnusamy Palanisamy | 2002-04-02 |
| 6023194 | Amplifier with reduced input capacitance | — | 2000-02-08 |
| 5589799 | Low noise amplifier for microphone | James S. Collins | 1996-12-31 |
| 5570428 | Transducer assembly | James S. Collins | 1996-10-29 |
| 5220612 | Non-occludable transducers for in-the-ear applications | George C. Tibbetts | 1993-06-15 |
| 5097224 | Self-biasing, low noise amplifier of extended dynamic range | Michael Jon Wurtz | 1992-03-17 |
| 5083095 | Plural source follower amplifier | — | 1992-01-21 |
| RE33718 | Acoustic transducer with improved electrode spacing | Elmer V. Carlson | 1991-10-15 |
| 4837833 | Microphone with frequency pre-emphasis channel plate | — | 1989-06-06 |
| 4815560 | Microphone with frequency pre-emphasis | — | 1989-03-28 |
| 4730283 | Acoustic transducer with improved electrode spacing | Elmer V. Carlson | 1988-03-08 |