Fritz Nittel

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Leverkusen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Color photographic material containing a hydroxyindane
- Patent number 4,052,216
- Issue date Oct 4, 1977
- AGFA-Gevaert, A.G.
- Johannes Sobel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic gelatine layers with improved physical and photographi...
- Patent number 3,967,966
- Issue date Jul 6, 1976
- AGFA-Gevaert, A.G.
- Wolfgang Himmelmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photographic silver halide material which contains color couplers
- Patent number 3,941,601
- Issue date Mar 2, 1976
- AGFA-Gevaert, A.G.
- Willibald Pelz
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for preparing 3-anilino-pyrazolones-(5)
- Patent number 3,931,221
- Issue date Jan 6, 1976
- Agfa-Gevaert Aktiengesellschaft
- Ernst Meier
- C07 - ORGANIC CHEMISTRY