Gerald Jan

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Marly, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Oil-soluble disazo dyes and their use in color-photographic recordi...
- Patent number 4,521,591
- Issue date Jun 4, 1985
- Ciba-Geigy AG
- Gerald Jan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of photographic color images by the silv...
- Patent number 4,465,763
- Issue date Aug 14, 1984
- Ciba-Geigy AG
- Eddy Forte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo dyes containing phosphamic acid diester groups
- Patent number 4,456,668
- Issue date Jun 26, 1984
- Ciba-Geigy AG
- John Lenoir
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Monoazo dyes containing phosphamic acid diester groups
- Patent number 4,409,143
- Issue date Oct 11, 1983
- Ciba-Geigy AG
- John Lenoir
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of photographic color images by the silv...
- Patent number 4,404,273
- Issue date Sep 13, 1983
- Ciba-Geigy AG
- Eddy Forte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color-photographic recording material for the silver dye bleach pro...
- Patent number 4,379,819
- Issue date Apr 12, 1983
- Ciba-Geigy AG
- John Lenoir
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of colored photographic images by the si...
- Patent number 4,369,318
- Issue date Jan 18, 1983
- Ciba-Geigy Ltd.
- Gerald Jan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Use of tertiary phosphines in photographic silver dye bleach materials
- Patent number 4,357,280
- Issue date Nov 2, 1982
- Ciba-Geigy AG
- Christoph Chylewski
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinoxalines and their use in photographic processes
- Patent number 4,323,682
- Issue date Apr 6, 1982
- Ciba-Geigy AG
- Gerald Jan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for processing silver dye-bleach materials
- Patent number 4,304,846
- Issue date Dec 8, 1981
- Ciba-Geigy AG
- Max Marthaler
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of colored photographic images by the si...
- Patent number 4,266,011
- Issue date May 5, 1981
- Ciba-Geigy AG
- Gerald Jan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinoxaline bleach catalysts
- Patent number 4,216,320
- Issue date Aug 5, 1980
- Ciba-Geigy AG
- Gerald Jan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinoxalines and their use in photographic processes
- Patent number 4,202,698
- Issue date May 13, 1980
- Ciba-Geigy AG
- Gerald Jan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinoxalines and their use in photographic processes
- Patent number 4,145,217
- Issue date Mar 20, 1979
- Ciba-Geigy AG
- Gerald Jan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of processing photographic silver dye bleach materials
- Patent number 4,138,256
- Issue date Feb 6, 1979
- Ciba-Geigy AG
- Christoph Chylewski
- C07 - ORGANIC CHEMISTRY

Person

Patents Grantslast 30 patents

Oil-soluble disazo dyes and their use in color-photographic recordi...

Process for the production of photographic color images by the silv...

Azo dyes containing phosphamic acid diester groups

Monoazo dyes containing phosphamic acid diester groups

Process for the production of photographic color images by the silv...

Color-photographic recording material for the silver dye bleach pro...

Process for the production of colored photographic images by the si...

Use of tertiary phosphines in photographic silver dye bleach materials

Quinoxalines and their use in photographic processes

Method for processing silver dye-bleach materials

Process for the production of colored photographic images by the si...

Quinoxaline bleach catalysts

Quinoxalines and their use in photographic processes

Quinoxalines and their use in photographic processes

Method of processing photographic silver dye bleach materials