Torsten Niederdraenk

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Erlangen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Electroacoustic miniature transducer for a hearing aid
- Patent number 7,702,124
- Issue date Apr 20, 2010
- Siemens Audiologische Technik GmbH
- Torsten Niederdraenk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Directional microphone
- Patent number 7,245,734
- Issue date Jul 17, 2007
- Siemens Audiologische Technik GmbH
- Torsten Niederdraenk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electromagnetic transducer for generating sound in hearing aids, pa...
- Patent number 6,563,933
- Issue date May 13, 2003
- Siemens Audiologische Technik GmbH
- Torsten Niederdraenk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Directional microphone
- Publication number 20050084128
- Publication date Apr 21, 2005
- Torsten Niederdraenk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electroacoustic miniature transducer for a hearing aid
- Publication number 20040179709
- Publication date Sep 16, 2004
- Torsten Niederdraenk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE