Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689820 | Hearing aid responsive to signals inside and outside of the audio frequency range | Wolfgang Kopke, Peter Wiener, Gerd-Wolfgang Gotze, Rainer Maas | 1987-08-25 |
| 4672672 | Miniature hearing aid | Jurgen Montag, Manfred Muller, Peter Wiener | 1987-06-09 |
| 4539441 | Hearing-aid with integrated circuit electronics | Rainer Goldschmidt | 1985-09-03 |
| 4471171 | Digital hearing aid and method | Wolfgang K/o/ pke, Peter Wiener, Rainer Maas, Gerd-Wolfgang G/o/ tze | 1984-09-11 |
| 4418787 | Hearing aid with audio path duct extension element, and extension element attachment | Erwin Gahleitner, Joachim Kwiatkowski | 1983-12-06 |
| 4395601 | Modular hearing aid | Wolfgang Kopke, Manfred Muller, Wolfgang Schmidt, Erwin Gahleitner, Gerhard Raupach | 1983-07-26 |
| 4258229 | Body vibration pickup | Wolfgang Schmidt | 1981-03-24 |