Aaron David Ezekiel

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Ilford, EN

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Patents Grantslast 30 patents

Information Patent Grant
Spectral sensitization of photographic material with natural colloi...
- Patent number 4,040,825
- Issue date Aug 9, 1977
- Ciba-Geigy AG
- Rolf Steiger
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conversion of 2-aminonaphtho[1,2 d] selenazole to 2-methylnaphtho[1...
- Patent number 4,009,176
- Issue date Feb 22, 1977
- Ciba-Geigy AG
- Aaron David Ezekiel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminonaphthoselenazole
- Patent number 3,969,364
- Issue date Jul 13, 1976
- Ciba-Geigy AG
- Aaron David Ezekiel
- C07 - ORGANIC CHEMISTRY