Wilhelm Mauelshagen

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Bad Camberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Water-soluble sulphur dyes, their preparation and use
- Patent number 5,383,961
- Issue date Jan 24, 1995
- Cassella AG
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-insoluble sulphur dyes, their preparation and use
- Patent number 5,374,302
- Issue date Dec 20, 1994
- Cassella AG
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-insoluble sulphur dyes, their preparation and use
- Patent number 5,368,637
- Issue date Nov 29, 1994
- Cassella AG
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...