Richard A Williams

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Savannah, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Melamine polymer hole blocking layer photoconductors
- Patent number 8,227,154
- Issue date Jul 24, 2012
- Xerox Corporation
- Jin Wu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Epoxysilane hole blocking layer photoconductors
- Patent number 8,227,155
- Issue date Jul 24, 2012
- Xerox Corporation
- Jin Wu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phenol polysulfide hole blocking layer photoconductors
- Patent number 8,071,267
- Issue date Dec 6, 2011
- Xerox Corporation
- Jin Wu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
EPOXYSILANE HOLE BLOCKING LAYER PHOTOCONDUCTORS
- Publication number 20110027705
- Publication date Feb 3, 2011
- Xerox Corporation
- Jin Wu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MELAMINE POLYMER HOLE BLOCKING LAYER PHOTOCONDUCTORS
- Publication number 20110027706
- Publication date Feb 3, 2011
- Xerox Corporation
- Jin Wu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHENOL POLYSULFIDE HOLE BLOCKING LAYER PHOTOCONDUCTORS
- Publication number 20100279215
- Publication date Nov 4, 2010
- Xerox Corporation
- Jin Wu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY