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Efthimios Chinoporos
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Cambridge, MA, US
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last 30 patents
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Patent Grant
Color-providing compound having two or more cyclic 1,3 sulfur-nitro...
Patent number
5,430,156
Issue date
Jul 4, 1995
Polaroid Corporation
Michael J. Arnost
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image-recording material
Patent number
5,415,970
Issue date
May 16, 1995
Polaroid Corporation
Michael J. Arnost
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Dye-providing compounds
Patent number
5,414,091
Issue date
May 9, 1995
Polaroid Corporation
Efthimios Chinoporos
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image-recording materials with cyclic 1,3-sulfur-nitrogen dye provi...
Patent number
5,340,689
Issue date
Aug 23, 1994
Polaroid Corporation
Efthimios Chinoporos
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Thermally developable photosensitive material
Patent number
5,316,887
Issue date
May 31, 1994
Polaroid Corporation
Michael J. Arnost
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Novel pyrazole compounds having silver halide development groups
Patent number
4,719,175
Issue date
Jan 12, 1988
Polaroid Corporation
Efthimios Chinoporos
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Azo and azomethine dye developers
Patent number
4,656,117
Issue date
Apr 7, 1987
Polaroid Corporation
Efthimios Chinoporos
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Color transfer photographic processes and products with indole phth...
Patent number
4,615,966
Issue date
Oct 7, 1986
Polaroid Corporation
Alan L. Borror
C07 - ORGANIC CHEMISTRY