Brian R. D. Whitear

Person

Brentwood, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Hydroquinone derivatives and their use in photographic materials
- Patent number 4,443,537
- Issue date Apr 17, 1984
- Ciba-Geigy AG
- Stephen R. Postle
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroquinone derivatives and their use in photographic materials
- Patent number 4,417,072
- Issue date Nov 22, 1983
- Ciba-Geigy AG
- Stephen R. Postle
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of photographic images by dye diffusion...
- Patent number 4,386,149
- Issue date May 31, 1983
- Ciba-Geigy AG
- Leslie F. A. Mason
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo compounds useful in a photographic dye diffusion transfer process
- Patent number 4,285,859
- Issue date Aug 25, 1981
- Ciba-Geigy AG
- Rainer Kitzing
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magenta-masked color azopyrazolinone couplers
- Patent number 4,277,398
- Issue date Jul 7, 1981
- Ciba-Geigy AG
- Brian R. D. Whitear
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of photographic images by dye diffusion...
- Patent number 4,269,928
- Issue date May 26, 1981
- Ciba-Geigy Aktiengesellschaft
- Leslie F. A. Mason
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo(hydrazo)-anthraquinone compounds
- Patent number 4,216,146
- Issue date Aug 5, 1980
- Ciba-Geigy AG
- Rainer Kitzing
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Brian R. D. Whitear

Person

Patents Grantslast 30 patents

Hydroquinone derivatives and their use in photographic materials

Hydroquinone derivatives and their use in photographic materials

Process for the production of photographic images by dye diffusion...

Azo compounds useful in a photographic dye diffusion transfer process

Magenta-masked color azopyrazolinone couplers

Process for the production of photographic images by dye diffusion...

Azo(hydrazo)-anthraquinone compounds