Michael Petroff

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Northridge, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Speaker systems and methods having amplitude and frequency response...
- Patent number 8,311,230
- Issue date Nov 13, 2012
- Thomson Licensing
- Michael L. Petroff
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Flat panel speaker
- Patent number 6,925,191
- Issue date Aug 2, 2005
- Digital Sonics LLC
- Michael Petroff
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SIGNAL PROCESS FOR THE DERIVATION OF IMPROVED DTM DYNAMIC TINNITUS...
- Publication number 20090028352
- Publication date Jan 29, 2009
- Michael L. PETROFF
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Amplified and acoustic-coupling-compensated headphone and earbud sy...
- Publication number 20070003091
- Publication date Jan 4, 2007
- ELECTROSOURCE LLC
- Michael L. Petroff
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Flat speaker with a flat membrane diaphragm
- Publication number 20050286729
- Publication date Dec 29, 2005
- George Harwood
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker systems and methods having amplitude and frequency response...
- Publication number 20050190927
- Publication date Sep 1, 2005
- PRN CORPORATION
- Michael L. Petroff
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Flat panel speaker
- Publication number 20020176597
- Publication date Nov 28, 2002
- Michael Petroff
- H04 - ELECTRIC COMMUNICATION TECHNIQUE