Leslie F. A. Mason

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Brentwood, GB

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Patents Grantslast 30 patents

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
Process for producing photographic images
- Patent number 4,271,254
- Issue date Jun 2, 1981
- Ciba-Geigy AG
- Leslie F. A. Mason
- 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