Robert C. Williamson

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La Jolla, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrostatic loudspeaker with a distributed filter
- Patent number 6,760,455
- Issue date Jul 6, 2004
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loud speaker structure
- Patent number 5,748,759
- Issue date May 5, 1998
- Carver Corporation
- James Joseph Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio frequency power amplifiers with actively damped filter
- Patent number 5,606,289
- Issue date Feb 25, 1997
- Carver Corporation
- Robert C. Williamson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Audio frequency power amplifiers with actively damped filter
- Patent number 5,543,753
- Issue date Aug 6, 1996
- Carver Corporation
- Robert C. Williamson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Audio frequency power amplifiers
- Patent number 5,396,194
- Issue date Mar 7, 1995
- Carver Corporation
- Robert C. Williamson
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Electrostatic loudspeaker with a distributed filter
- Publication number 20020080984
- Publication date Jun 27, 2002
- Amercian Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE