Ewell R. Cook

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Rochester, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Photographic element and process comprising a blocked photographica...
- Patent number 5,019,492
- Issue date May 28, 1991
- Eastman Kodak Company
- John M. Buchanan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color-forming couplers and their use in the analytical determinatio...
- Patent number 4,672,029
- Issue date Jun 9, 1987
- Eastman Kodak Company
- William N. Washburn
- C07 - ORGANIC CHEMISTRY