Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9997035 | Acoustic security system and method | — | 2018-06-12 |
| 9702586 | Energy storage for PV water heater | — | 2017-07-11 |
| 9635477 | Hearing aid with capacitive switch | Donald Allan Lowmiller, Fan Wu | 2017-04-25 |
| 8948426 | Method for calibrating a hearing aid | Scott Fink | 2015-02-03 |
| 8712085 | Light powered hearing aid | Fan Wu | 2014-04-29 |
| 8538050 | Method for communicating with a hearing aid | Scott Fink | 2013-09-17 |
| 8331592 | Wireless gateway for hearing aid | Fan Wu | 2012-12-11 |
| 7974427 | Method for identifying a hearing aid | Scott Fink | 2011-07-05 |
| 7747030 | Method for identifying a hearing aid | Scott Fink | 2010-06-29 |
| 7620195 | Rechargeable hearing aid | Bradley Dean Bengtsson, Scott Fink | 2009-11-17 |
| 6963642 | Band-by-band full duplex communication | — | 2005-11-08 |
| 6931124 | Soft mute circuit | Raymond Rubacha | 2005-08-16 |
| 6904146 | Full duplex echo cancelling circuit | Steven M. Domer | 2005-06-07 |
| 6891809 | Background communication using shadow of audio signal | John C. Ciccone | 2005-05-10 |
| 6798881 | Noise reduction circuit for telephones | — | 2004-09-28 |
| 6625286 | Precise amplitude correction circuit | Raymond Rubacha, Kendall G. Moore | 2003-09-23 |
| 6608898 | Band pass and notch filters for echo reduction with less phase distortion | Kendall G. Moore | 2003-08-19 |
| 6492865 | Band pass filter from two filters | — | 2002-12-10 |
| 6421443 | Acoustic and electronic echo cancellation | Kendall G. Moore | 2002-07-16 |
| 6404278 | Separation of plural band pass filters | Justin Allen | 2002-06-11 |
| 6404279 | Band pass filter with improved group delay | — | 2002-06-11 |
| 6301364 | Tagging echoes with low frequency noise | Donald Allan Lowmiller, Kendall G. Moore | 2001-10-09 |
| 6278785 | Echo cancelling process with improved phase control | — | 2001-08-21 |
| 6268766 | Band pass filter from two notch filters | — | 2001-07-31 |
| 6255877 | Wide range, variable phase shift circuit | — | 2001-07-03 |