Douglas A. Usifer

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Belle Mead, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Positive-working photoresist compositions
- Patent number 5,104,770
- Issue date Apr 14, 1992
- Hoechst Celanese Corporation
- Douglas A. Usifer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of producing an image reversal negative photoresist having a...
- Patent number 5,019,488
- Issue date May 28, 1991
- Hoechst Celanese Corporation
- Donald C. Mammato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY