Herbert Wille

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of benzothioxanthene dyestuffs
- Patent number 5,280,128
- Issue date Jan 18, 1994
- Cassella Aktiengesellschaft
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of 2-mercaptobenzoxazoles
- Patent number 4,677,209
- Issue date Jun 30, 1987
- Cassella Aktiengesellschaft
- Ulrich Kussmaul
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 4,5-dichloro-1,2-dithiacyclopenten-3...
- Patent number 4,447,623
- Issue date May 8, 1984
- Cassella Aktiengesellschaft
- Rolf Muller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-Isopropyl-4'-nitrobenzophenone and a process for the preparation...
- Patent number 4,413,144
- Issue date Nov 1, 1983
- Cassella Aktiengesellschaft
- Horst Tappe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of derivatives of 3-(4-hydroxy-anilino)...
- Patent number 4,320,060
- Issue date Mar 16, 1982
- Cassella Aktiengesellschaft
- Steffen Piesch
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
N-substituted .epsilon.-caprolactams
- Patent number 4,185,017
- Issue date Jan 22, 1980
- Cassella Aktiengesellschaft
- Steffen Piesch
- C07 - ORGANIC CHEMISTRY