Ernst Heinrich

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Neu-Isenburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of 2,6-diaminopyridine-azo dyestuffs an...
- Patent number 4,325,870
- Issue date Apr 20, 1982
- Cassella Aktiengesellschaft
- Ulrich Buhler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo coupling in two-phase water-alcohol mixtures
- Patent number 4,313,872
- Issue date Feb 2, 1982
- Cassella Aktiengesellschaft
- Ernst Heinrich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-insoluble monoazo pyridone dye
- Patent number 4,247,456
- Issue date Jan 27, 1981
- Cassella Aktiengesellschaft
- Hanswilli von Brachel
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the manufacture of 2,6-dichloropyridine derivatives
- Patent number 4,225,716
- Issue date Sep 30, 1980
- Cassella Aktiengesellschaft
- Ulrich Buhler
- C07 - ORGANIC CHEMISTRY