Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11856382 | Acoustic transducer having drop ring connected at resonant node | Kelvin Francis Griffiths | 2023-12-26 |
| 10645521 | Stereo and filter control for multi-speaker device | Ryan J. Mihelich, Tomlinson Holman, Alexander P. Niemeyer | 2020-05-05 |
| 10148800 | Acoustic compensation chamber for a remotely located audio device | Austin L. Frederickson, Mitchell Heschke, Lee B. Hamstra | 2018-12-04 |
| 9949057 | Stereo and filter control for multi-speaker device | Ryan J. Mihelich, Tomlinson Holman, Alexander P. Niemeyer | 2018-04-17 |