Birgit Kufner

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Uttenreuth, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hearing aid
- Patent number 7,711,132
- Issue date May 4, 2010
- Siemens Audiologische Technik GmbH
- Birgit Küfner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Hearing aid
- Publication number 20050152567
- Publication date Jul 14, 2005
- Siemens Audiologische Technik GmbH
- Birgit Kufner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Hearing aid device with a voltage source
- Publication number 20040071306
- Publication date Apr 15, 2004
- Birgit Kufner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE