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Roger H. Piggin
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Hertfordshire, GB
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Patents Grants
last 30 patents
Information
Patent Grant
High contrast photographic element containing a novel combination o...
Patent number
6,573,021
Issue date
Jun 3, 2003
Eastman Kodak Company
Julie Baker
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photographic high contrast silver halide material and method of pro...
Patent number
6,187,520
Issue date
Feb 13, 2001
Eastman Kodak Company
Julia Pich
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photographic high contrast silver halide material
Patent number
5,985,509
Issue date
Nov 16, 1999
Eastman Kodak Company
Allison Hazel C. Dale
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photographic high contrast silver halide material
Patent number
5,736,295
Issue date
Apr 7, 1998
Eastman Kodak Company
Allison Hazel Caroline Dale
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High contrast photographic silver halide material
Patent number
5,589,318
Issue date
Dec 31, 1996
Eastman Kodak Company
Allison Hazel C. Dale
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High contrast photographic silver halide material
Patent number
5,512,415
Issue date
Apr 30, 1996
Eastman Kodak Company
Allison H. C. Dale
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process of preparing a tabular grain silver bromoiodide emulsion an...
Patent number
5,061,609
Issue date
Oct 29, 1991
Eastman Kodak Company
Roger H. Piggin
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process of preparing a tabular grain silver bromoiodide emulsion
Patent number
5,061,616
Issue date
Oct 29, 1991
Eastman Kodak Company
Roger H. Piggin
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Radiation-sensitive silver bromoiodide emulsions, photographic elem...
Patent number
4,433,048
Issue date
Feb 21, 1984
Eastman Kodak Company
John C. Solberg
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
High contrast photographic element containing a novel combination o...
Publication number
20020192589
Publication date
Dec 19, 2002
Eastman Kodak Company
Julie Baker
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY