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Robert L. Vollmer
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Boulder, CO, US
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last 30 patents
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Patent Grant
Electrophotographic photoconductor having improved cycling stabilit...
Patent number
5,545,499
Issue date
Aug 13, 1996
Lexmark International, Inc.
Vernon M. Balthis
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Waterfast dye and aqueous ink
Patent number
5,198,022
Issue date
Mar 30, 1993
Lexmark International, Inc.
Rodney O. Aulick
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Electrophotographic photoconductor contains ordered copolyester pol...
Patent number
5,130,215
Issue date
Jul 14, 1992
Lexmark International, Inc.
James M. Adley
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
Synthesis of squaric acid
Patent number
4,104,308
Issue date
Aug 1, 1978
International Business Machines Corporation
Thomas Richard Gadek
C07 - ORGANIC CHEMISTRY