Richard J. Byer

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Rochester, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing a long scale direct-positive photographic emul...
- Patent number 4,378,427
- Issue date Mar 29, 1983
- E. I. Du Pont de Nemours and Company
- Richard J. Byer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for producing a long scale direct-positive photographic emul...
- Patent number 4,370,411
- Issue date Jan 25, 1983
- E. I. Du Pont de Nemours and Company
- Richard J. Byer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY