Robert Bruce Champ

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoconductor containing fluorenyl-azine deriv...
- Patent number 6,004,708
- Issue date Dec 21, 1999
- Lexmark International, Inc.
- Mark Thomas Bellino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Squarylium photoconductors with noncrystalline bisphenol a binders
- Patent number 5,130,217
- Issue date Jul 14, 1992
- Lexmark International, Inc.
- Robert B. Champ
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Organic photoconductors with improved wear
- Patent number 4,889,784
- Issue date Dec 26, 1989
- International Business Machines
- Robert B. Champ
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Squarylium charge generating dye and electrophotographic photocondu...
- Patent number 4,677,045
- Issue date Jun 30, 1987
- International Business Machines Corporation
- Robert B. Champ
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Xerographic photoconductors with cross-linked epoxy binder
- Patent number 4,490,452
- Issue date Dec 25, 1984
- International Business Machines Corporation
- Robert B. Champ
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Hydrazone and pyrazoline or acetosol yellow containing charge trans...
- Patent number 4,362,798
- Issue date Dec 7, 1982
- International Business Machines Corporation
- Howard W. Anderson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Layered electrophotographic plate having tetramethyl benzidene base...
- Patent number 4,307,167
- Issue date Dec 22, 1981
- International Business Machines Corporation
- Larry D. Bowden
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrochromic display devices comprising thienylidene pyrazoline c...
- Patent number 4,090,782
- Issue date May 23, 1978
- International Business Machines Corporation
- Karin Else Bredfeldt
- G02 - OPTICS
Information Patent Grant
Visual image display device
- Patent number 4,037,928
- Issue date Jul 26, 1977
- International Business Machines Corporation
- Robert Bruce Champ
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Robert Bruce Champ

Person

Patents Grantslast 30 patents

Electrophotographic photoconductor containing fluorenyl-azine deriv...

Squarylium photoconductors with noncrystalline bisphenol a binders

Organic photoconductors with improved wear

Squarylium charge generating dye and electrophotographic photocondu...

Xerographic photoconductors with cross-linked epoxy binder

Hydrazone and pyrazoline or acetosol yellow containing charge trans...

Layered electrophotographic plate having tetramethyl benzidene base...

Electrochromic display devices comprising thienylidene pyrazoline c...

Visual image display device