JD Birck, LLC

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for aural acoustic immittance measurement
- Patent number 8,419,655
- Issue date Apr 16, 2013
- JD Birck, LLC
- Jonathan David Birck
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

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Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for aural acoustic immittance measurement
- Publication number 20110071422
- Publication date Mar 24, 2011
- JD Birck, LLC
- Jonathan David Birck
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE