Friedrich W. Weingarten

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Liederbach am Taunus, DE

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Patents Grantslast 30 patents

Information Patent Grant
Azo pigment having improved hiding power and a process for its prep...
- Patent number 4,476,052
- Issue date Oct 9, 1984
- Farbwerke Hoechst Aktiengesellschaft
- Klaus Hunger
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Monoazo pigment derived from acetoacetylamino benzimidazolone
- Patent number 4,370,269
- Issue date Jan 25, 1983
- Hoechst Aktiengesellschaft
- Friedrich W. Weingarten
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...