Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7507920 | Hearing aid with a control element | — | 2009-03-24 |
| 4922540 | Hearing aid comprising a printed circuit film | — | 1990-05-01 |
| 4912769 | Hearing aid comprising a printed circuit board and hearing coil | — | 1990-03-27 |
| 4890329 | Hearing aid comprising printed circuit board | — | 1989-12-26 |