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John G. Ruhland
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Rochester, NY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Emulsion aggregation toner particles coated with negatively chargea...
Patent number
6,503,677
Issue date
Jan 7, 2003
Xerox Corporation
Edward J. Gutman
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and developer compositions
Patent number
6,087,059
Issue date
Jul 11, 2000
Xerox Corporation
Michael J. Duggan
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Magnetic image character recognition processes
Patent number
5,102,755
Issue date
Apr 7, 1992
Xerox Corporation
John G. Ruhland
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Imaging processes with cold pressure fixable toner compositions
Patent number
4,935,324
Issue date
Jun 19, 1990
Xerox Corporation
Bernard Grushkin
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Imaging processes with cold pressure fixable toner compositions
Patent number
4,877,707
Issue date
Oct 31, 1989
Xerox Corporation
Bernard Grushkin
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Conductive single component cold pressure fixable magnetic toner co...
Patent number
4,810,610
Issue date
Mar 7, 1989
Xerox Corporation
Bernard Grushkin
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Development apparatus
Patent number
4,619,517
Issue date
Oct 28, 1986
Xerox Corporation
John G. Ruhland
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Contact fuser and release agent applicator therefor
Patent number
4,000,957
Issue date
Jan 4, 1977
Xerox Corporation
John G. Ruhland
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Roll contact fuser
Patent number
3,937,637
Issue date
Feb 10, 1976
Xerox Corporation
Rabin Moser
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
EMULSION AGGREGATION TONER PARTICLES COATED WITH NEGATIVELY CHARGEA...
Publication number
20030017406
Publication date
Jan 23, 2003
Xerox Corporation.
Edward J. Gutman
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY