Detlef Winkelmann

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Wiesbaden, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing color images
- Patent number 4,988,591
- Issue date Jan 29, 1991
- Hoechst Aktiengesellschaft
- Detlef Winkelmann
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for preparing a planographic printing plate
- Patent number 4,533,611
- Issue date Aug 6, 1985
- Hoechst Aktiengesellschaft
- Detlef Winkelmann
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic copier
- Patent number 4,512,658
- Issue date Apr 23, 1985
- Hoechst Aktiengesellschaft
- Detlef Winkelmann
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Alcohol soluble, organic photoconductor containing polymeric protec...
- Patent number 4,301,225
- Issue date Nov 17, 1981
- Hoechst Aktiengesellschaft
- Heinz Herrmann
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY