Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689820 | Hearing aid responsive to signals inside and outside of the audio frequency range | Wolfgang Kopke, Albert Eggert, Peter Wiener, Gerd-Wolfgang Gotze | 1987-08-25 |
| 4471171 | Digital hearing aid and method | Wolfgang K/o/ pke, Peter Wiener, Albert Eggert, Gerd-Wolfgang G/o/ tze | 1984-09-11 |