Alois-Bernhard Kerkhoff

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Bissendorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of inspecting a web of translucent material, especially phot...
- Patent number 5,237,181
- Issue date Aug 17, 1993
- Felix Schoeller jr GmbH & Co. KG
- Alois B. Kerkhoff
- G01 - MEASURING TESTING
Information Patent Grant
Waterproof photographic paper support
- Patent number 4,820,582
- Issue date Apr 11, 1989
- Felix Schoeller, Jr. GmbH & Co. KG
- Heinz-Otto Merz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Waterproof photographic paper support
- Patent number 4,808,267
- Issue date Feb 28, 1989
- Felix Schoeller, Jr. GmbH & Co. KG
- Alois-Bernhard Kerkhoff
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Water-resistant photographic paper support
- Patent number 4,731,291
- Issue date Mar 15, 1988
- Felix Schoeller, Jr. GmbH & Co. KG
- Alois-Bernhard Kerkhoff
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY