Alexa Weinges

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Heidelberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Oxidation hair dye composition based on 4,5-diaminopyrazole and m-p...
- Patent number 5,718,731
- Issue date Feb 17, 1998
- Wella Aktiengesellschaft
- Isolde Loewe
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Substituted 2-alkylamino-4-amino-1-alkylbenzene compounds and oxida...
- Patent number 5,645,610
- Issue date Jul 8, 1997
- Wolfgang R. Balzer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
5-halogen-2,4-Bis (alkylamino)-1-alkylbenzenes and hair dye composi...
- Patent number 5,542,953
- Issue date Aug 6, 1996
- Wella AG
- Wolfgang R. Balzer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for the production of 5-alkoxy-2,4-dinitro-alkylbenzenes
- Patent number 5,382,702
- Issue date Jan 17, 1995
- Wella Aktiengesellschaft
- Wolfgang R. Balzer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Composition for the oxidative dyeing of hair and new 5-halogen-2,4-...
- Patent number 5,224,965
- Issue date Jul 6, 1993
- Wella Aktiengesellschaft
- Thomas Clausen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE