Richard J. Vandersteen

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Hanford, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite loudspeaker cone
- Patent number 8,320,604
- Issue date Nov 27, 2012
- Richard Vandersteen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus and methods for dielectric bias system
- Patent number 7,872,195
- Issue date Jan 18, 2011
- William E. Low
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus and methods for dielectric bias system
- Patent number 7,126,055
- Issue date Oct 24, 2006
- William E. Low
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coincident source stereo speaker
- Patent number 7,046,816
- Issue date May 16, 2006
- Richard J. Vandersteen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Midrange loudspeaker driver
- Patent number 5,073,948
- Issue date Dec 17, 1991
- Richard J. Vandersteen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Coincident source stereo speaker
- Publication number 20030053644
- Publication date Mar 20, 2003
- Richard J. Vandersteen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE