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Darmstadt, DE
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last 30 patents
Information
Patent Grant
Cosmetic composition for treating skin and hair containing apple wa...
Patent number
5,587,174
Issue date
Dec 24, 1996
Wella Aktiengsellschaft
G unther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hair dye compositions based on 2,5-diamino-6-nitropyridine derivatives
Patent number
5,145,482
Issue date
Sep 8, 1992
Wella Aktiengesellschaft
Thomas Clausen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
2-nitroaniline derivatives and hair dyeing compositions containing...
Patent number
5,037,446
Issue date
Aug 6, 1991
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Use of 2,6-dinitro-aniline derivatives in hair dyes and new 2,6-din...
Patent number
5,030,241
Issue date
Jul 9, 1991
Wella Aktiengesellschaft
Thomas Clausen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxidative hair dye composition based on a gel vehicle and a process...
Patent number
5,021,066
Issue date
Jun 4, 1991
Wella Aktiengesellschaft
Johann Aeby
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Preserved hair-and body-cleaning agent and the use of a preservativ...
Patent number
4,971,784
Issue date
Nov 20, 1990
Wella Aktiengesellschaft
Hans Holzel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for the production of 2,5-diamino-6-nitro-pyridine derivati...
Patent number
4,950,302
Issue date
Aug 21, 1990
Wella Aktiengesellschaft
Thomas Clausen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cosmetic compostions based upon N-hydroxybutyl-chitosans, N-hydroxy...
Patent number
4,931,271
Issue date
Jun 5, 1990
Wella Aktiengesellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for making quaternary chitosan derivatives for cosmetic agents
Patent number
4,921,949
Issue date
May 1, 1990
Wella Aktiengesellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
4-(N-ethyl-N-2-hydroxyethyl)-amino-1-(2 hydroxyethyl)-amino-2-nitro...
Patent number
4,921,504
Issue date
May 1, 1990
Wella Aktiengesellschaft
Thomas Clausen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Pumpable cationic fatty alcohol despersion
Patent number
4,892,728
Issue date
Jan 9, 1990
Henkel Kommanditgesellschaft auf Aktien
Rolf Kawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Diaminotetrafluoroethoxybenzenes, process for producing same and ha...
Patent number
4,886,516
Issue date
Dec 12, 1989
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Composition and method for the oxidative dyeing of hair
Patent number
4,883,656
Issue date
Nov 28, 1989
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hair treating compositions and processes for improving the conditio...
Patent number
4,855,130
Issue date
Aug 8, 1989
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
5-alkoxy-2,4-diamino-alkyl-benzenes and hairdye compositions based...
Patent number
4,854,935
Issue date
Aug 8, 1989
Wella Aktiengesellschaft
Thomas Clausen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Diaminotetrafluoroethoxybenzenes
Patent number
4,845,294
Issue date
Jul 4, 1989
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cosmetic compositions on the basis of alkyl-hydroxypropyl-substitut...
Patent number
4,845,204
Issue date
Jul 4, 1989
Wella Aktiengesellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Agent for dyeing hair
Patent number
4,840,639
Issue date
Jun 20, 1989
Wella Aktiengesellschaft
Hans Husemeyer
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cosmetic compositions based upon n-hydroxypropyl-chitosans, new n-h...
Patent number
4,835,266
Issue date
May 30, 1989
Wella Aktiengsellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
2-nitroaniline derivatives
Patent number
4,835,314
Issue date
May 30, 1989
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cosmetic agent on the basis of quaternary chitosan derivatives, nov...
Patent number
4,822,598
Issue date
Apr 18, 1989
Wella Aktiengesellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxidative hair dye composition based on 4-amino-2-aminomethyl-phenols
Patent number
4,797,130
Issue date
Jan 10, 1989
Wella Aktiengesellschaft
Thomas Clausen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cosmetic compositions based upon N-hydroxypropyl-chitosans, new N-h...
Patent number
4,780,310
Issue date
Oct 25, 1988
Wella Aktiengesellschaft
Guther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Quaternary hydroxy-propyl-substituted chitosan derivatives, cosmeti...
Patent number
4,772,689
Issue date
Sep 20, 1988
Wella Aktiengesellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Quaternary hydroxyethyl-substituted chitosan derivatives, cosmetic...
Patent number
4,772,690
Issue date
Sep 20, 1988
Wella Aktiengesellschaft
Gunther Lang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Agent and process for the coloring of hair
Patent number
4,755,188
Issue date
Jul 5, 1988
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
2-alkyl sulfonyl-1,4-diaminobenzenes, processes for their productio...
Patent number
4,754,069
Issue date
Jun 28, 1988
Wella Aktiengesellschaft
Hans-Jurgen Braun
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hair treatment agent and method for improving the conditon of hair
Patent number
4,752,467
Issue date
Jun 21, 1988
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxidative hair dyeing composition based upon a carrier of low visco...
Patent number
4,725,282
Issue date
Feb 16, 1988
Wella Aktiengesellschaft
Dietrich Hoch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method and composition for the dyeing of hair with 2,6-diamino-pyri...
Patent number
4,713,080
Issue date
Dec 15, 1987
Wella Aktiengesellschaft
Eugen Konrad
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE