Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10827245 | Gradient micro-electro-mechanical systems (MEMS) microphone with varying height assemblies | Marc Reese, Fengyuan Li, Spiro Iraclianos | 2020-11-03 |
| 10771875 | Gradient micro-electro-mechanical systems (MEMS) microphone | Fengyuan Li, Larry A. Marcus, Alan Dean Michel, Marc Reese | 2020-09-08 |
| 10154330 | Gradient micro-electro-mechanical systems (MEMS) microphone | Fengyuan Li, Larry A. Marcus, Alan Dean Michel, Marc Reese | 2018-12-11 |
| 9955246 | Gradient micro-electro-mechanical systems (MEMS) microphone with varying height assemblies | Marc Reese, Fengyuan Li, Spiro Iraclianos | 2018-04-24 |
| 8804982 | Dual cell MEMS assembly | Alan Dean Michel, Jeffrey Phillip McAteer | 2014-08-12 |
| 8300871 | Earphone for wideband communication | Christopher Todd Welsh, Larry A. Marcus | 2012-10-30 |
| 8155366 | Transducer package with interior support frame | Alan Dean Michel, Joshua R. Barber, Christopher Todd Welsh, Jeffrey Phillip McAteer | 2012-04-10 |
| 8107652 | Controlled leakage omnidirectional electret condenser microphone element | Medford Alan Dyer, Christopher Todd Welsh, Jeffrey Phillip McAteer, Alan Dean Michel | 2012-01-31 |
| 7825509 | Transducer package with transducer die unsupported by a substrate | Alan Dean Michel, Joshua R. Barber, Christopher Todd Welsh, Jeffrey Phillip McAteer | 2010-11-02 |
| 7790492 | Method for fabricating a transducer package with the transducer die unsupported by a substrate | Alan Dean Michel, Joshua R. Barber, Christopher Todd Welsh, Jeffrey Phillip McAteer | 2010-09-07 |
| 7751575 | Microphone system for communication devices | Larry A. Marcus, Christopher Todd Welsh, Alan Dean Michel, Jeffrey Phillip McAteer | 2010-07-06 |
| 7646865 | Telephone handset coupling system | Christopher Todd Welsh, Alan Dean Michel, Michael Thomas Frank, Larry A. Marcus | 2010-01-12 |
| 7182324 | Microphone isolation system | Robert Spaller, Thao D. Hovanky, Larry A. Marcus, Peter L. Chu, Denton L. Simpson | 2007-02-27 |
| 6683964 | Direction finder | Jeffrey Phillip McAteer, Alan Dean Michel | 2004-01-27 |
| 6389145 | Methods and apparatus for controlling the output of moving armature transducers | Larry A. Marcus | 2002-05-14 |
| 5848172 | Directional microphone | Jonathan B. Allen, James E. West | 1998-12-08 |
| 5739481 | Speaker mounting system | Chen-Chieh Lin, Raymond Motluck, Christopher Todd Welsh | 1998-04-14 |
| 5651074 | Noise canceling gradient microphone assembly | Larry A. Marcus | 1997-07-22 |
| 5515445 | Long-time balancing of omni microphones | Jeffrey Phillip McAteer, Alan Dean Michel, Kevin D. Willis | 1996-05-07 |
| 5506908 | Directional microphone system | Jeffrey Phillip McAteer, Alan Dean Michel, Christopher Todd Welsh, Kevin D. Willis | 1996-04-09 |
| 5226076 | Directional microphone assembly | Jeffrey Phillip McAteer, Frederick A. Rosebrock, Richard M. Sachs | 1993-07-06 |
| 5121426 | Loudspeaking telephone station including directional microphone | Jeffrey Phillip McAteer, Brian Albert Wittman | 1992-06-09 |
| 4533795 | Integrated electroacoustic transducer | Harold J. Hershey, Tommy L. Poteat | 1985-08-06 |