Clifford K. Friend

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Pittsford, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic transfer assist driver system
- Patent number 6,157,804
- Issue date Dec 5, 2000
- Xerox Corporation
- David W. Richmond
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Power supply topology enabling bipolar voltage output from a single...
- Patent number 5,500,721
- Issue date Mar 19, 1996
- Xerox Corporation
- John M. Randall
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Microcontroller based xerographic charge device power supply
- Patent number 5,361,123
- Issue date Nov 1, 1994
- Xerox Corporation
- Thomas I. Yeh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer, detac polarity switching
- Patent number 5,204,730
- Issue date Apr 20, 1993
- Xerox Corporation
- David W. Richmond
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
High voltage sine wave power supply
- Patent number 4,286,316
- Issue date Aug 25, 1981
- Xerox Corporation
- Clifford K. Friend
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER