Otto Grawinger

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
1-Acyl-8-(3-amino-2-hydroxypropoxy)-1,2,3,4-tetrahydroquinolines, c...
- Patent number 4,335,123
- Issue date Jun 15, 1982
- Cassella Aktiengesellschaft
- Otto Grawinger
- C07 - ORGANIC CHEMISTRY
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
N-Aryloxypropyl-N'-dioxopyrimidyl-.alpha.,.omega.-alkylenediamines
- Patent number 4,216,314
- Issue date Aug 5, 1980
- Cassella Farbwerke Mainkur Aktiengesellschaft
- Thomas Raabe
- C07 - ORGANIC CHEMISTRY