Wolfgang Groebke

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Oberwil, CH

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Patents Grantslast 30 patents

Information Patent Grant
Phenyl-azo-naphthyl dyes having a 2-acyloxy, alkoxy or hydroxy-1-ar...
- Patent number 4,049,642
- Issue date Sep 20, 1977
- Sandoz Ltd.
- Wolfgang Groebke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Phenylazophenyl dyes having an alkoxyacylamino group on the couplin...
- Patent number 4,042,580
- Issue date Aug 16, 1977
- Sandoz Ltd.
- Wolfgang Groebke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
2'-Alkoxyacylamino-4'-alkylamino-4-nitro-1,1'-azobenzene disperse dyes
- Patent number 4,038,269
- Issue date Jul 26, 1977
- Sandoz Ltd.
- Wolfgang Groebke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Phenyl-azo-phenyl compounds of low solubility in water
- Patent number 3,948,880
- Issue date Apr 6, 1976
- Sandoz Ltd.
- Wolfgang Groebke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...