Gladys L. Unger

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Belmont, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for sound transduction with minimal interferen...
- Patent number 7,477,751
- Issue date Jan 13, 2009
- RH Lyon Corp
- Richard H. Lyon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Apparati and methods for sound transduction with minimal interferen...
- Publication number 20090154715
- Publication date Jun 18, 2009
- Richard H. Lyon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for sound transduction with minimal interferen...
- Publication number 20070086603
- Publication date Apr 19, 2007
- RH Lyon Corp
- Richard H. Lyon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE