Guenther Konrad

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Hilden, DE

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Patents Grantslast 30 patents

Information Patent Grant
Oxidation colorants for keratin fibers
- Patent number 6,719,811
- Issue date Apr 13, 2004
- Henkel Kommanditgesellschaft auf Aktien
- Guenther Konrad
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Compounds containing substituted phenylamino and pyridyl groups and...
- Patent number 4,994,087
- Issue date Feb 19, 1991
- Henkel Kommanditgesellschaft auf Aktien
- Guenther Konrad
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Oxidation hair-dyeing preparations
- Patent number 4,828,568
- Issue date May 9, 1989
- Henkel Kommanditgesellschaft auf Aktien
- Guenther Konrad
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE