Jan Marinus Van Doorn

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Alkmaar, NL

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Patents Grantslast 30 patents

Information Patent Grant
Listening support device, in particular a hearing aid, and a compre...
- Patent number 9,906,880
- Issue date Feb 27, 2018
- Exsilent Research B.V.
- Jan Marinus Van Doorn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Micro converter, audio device and hearing aid
- Patent number 9,143,871
- Issue date Sep 22, 2015
- Exsilent Research B.V.
- Jan Marinus Van Doorn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Microphone with improved sound inlet port
- Patent number 7,072,482
- Issue date Jul 4, 2006
- Sonion Nederland B.V.
- Jan Marinus Van Doorn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LISTENING SUPPORT DEVICE, IN PARTICULAR A HEARING AID, AND A COMPRE...
- Publication number 20140219487
- Publication date Aug 7, 2014
- EXSILENT RESEARCH B.V.
- Jan Marinus Van Doorn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MICRO CONVERTER, AUDIO DEVICE AND HEARING AID
- Publication number 20140016809
- Publication date Jan 16, 2014
- EXSILENT RESEARCH B.V.
- Jan Marinus Van Doorn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Microphone with improved sound inlet port
- Publication number 20040047486
- Publication date Mar 11, 2004
- Jan Marinus Van Doorn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE