Peter Wiener

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hearing aid responsive to signals inside and outside of the audio f...
- Patent number 4,689,820
- Issue date Aug 25, 1987
- Robert Bosch GmbH
- Wolfgang Kopke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Miniature hearing aid
- Patent number 4,672,672
- Issue date Jun 9, 1987
- Robert Bosch GmbH
- Albert Eggert
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital hearing aid and method
- Patent number 4,471,171
- Issue date Sep 11, 1984
- Robert Bosch GmbH
- Wolfgang K/o/ pke
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE