Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4947439 | Hearing aid comprising a contact spring arrangement | — | 1990-08-07 |
| 4941180 | Hearing aid with a contact spring configuration | — | 1990-07-10 |
| 4831655 | Hinge for a hearing aid cover | — | 1989-05-16 |
| 4638125 | Hearing aid with a housing to be worn behind the ear | — | 1987-01-20 |
| 4354065 | Miniature hearing aid | — | 1982-10-12 |