William R. Pangratz

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Parlin, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for rapid access development of silver halide films using p...
- Patent number 5,384,232
- Issue date Jan 24, 1995
- E. I. Du Pont de Nemours and Company
- Julie C. Bishop
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
High contrast continuous tone developer and process of use
- Patent number 4,172,728
- Issue date Oct 30, 1979
- E. I. Du Pont de Nemours and Company
- Joseph A. Sincius
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY