Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6690806 | Various directional/omni-directional hearing aid microphone and housing structures | Alexander L. Darbut, Gerald D. Richels | 2004-02-10 |
| 6678386 | Programmable module | Kurt Bartges | 2004-01-13 |