P

Inventor

CLAUSEN THOMAS

DE39 patents
⚠️ This page may combine multiple inventors who share the name “CLAUSEN THOMAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WELLA AG

37 patents
US5534267AJul 9, 1996

Composition for the oxidative dyeing of hair containing 4,5-diaminopyrazole derivatives as well as new 4,5-diaminopyrazole derivatives and process for their synthesis

WELLA AG498 citations98
US5380340AJan 10, 1995

Hair dye containing aminopyrazole derivatives as well as pyrazole derivatives

WELLA AG596 citations98
US5061289AOct 29, 1991

Oxidation hair dye composition containinng diaminopyrazol derivatives and new diaminopyrazol derivatives

WELLA AG646 citations97
US5279313AJan 18, 1994

Two component composition and method for bleaching hair

WELLA AG75 citations96
US5879669AMar 9, 1999

Aqueous hair fixing composition containing a water-soluble hair fixing polymer and a thickener

WELLA AG64 citations95
US5690921ANov 25, 1997

Hair fixing composition in the form of an aqueous solution, foam or gel

WELLA AG46 citations93
US4797130AJan 10, 1989

Oxidative hair dye composition based on 4-amino-2-aminomethyl-phenols

WELLA AG26 citations93
US5430159AJul 4, 1995

N-phenylaminopyrazole derivatives as well as composition and process for the dyeing of hair

WELLA AG30 citations92
US5409503AApr 25, 1995

Oxidation hair dye with a content of 5-aminophenyl derivatives, process for oxidative dyeing of hair and new 5-aminophenol derivatives

WELLA AG20 citations92
US4473375ASep 25, 1984

Composition and method for the coloring of hair

WELLA AG27 citations92
US6068835AMay 30, 2000

Cosmetic compositions for hair treatment containing dendrimers or dendrimer conjugates

WELLA AG44 citations91
US5303722AApr 19, 1994

Apparatus for bleaching hair under the influence of light

WELLA AG31 citations91
US5246019ASep 21, 1993

Process for bleaching hair under the influence of light

WELLA AG39 citations91
US5424062AJun 13, 1995

Method for permanently shaping hair

WELLA AG26 citations90
US5512276AApr 30, 1996

Composition for fixing hair based on lignin or lignin derivatives as well as dihydroxypropyl lignin

WELLA AG31 citations89
US5674476AOct 7, 1997

Process for making a persulfate-containing granulate for decolorizing or bleaching hair

WELLA AG31 citations88
US4997451AMar 5, 1991

Oxidative hair dyeing compositions based on 4-aminophenol derivatives and new 4-aminophenol derivatives

WELLA AG36 citations88
US5030241AJul 9, 1991

Use of 2,6-dinitro-aniline derivatives in hair dyes and new 2,6-dinitro-aniline derivatives

WELLA AG7 citations74
US4854935AAug 8, 1989

5-alkoxy-2,4-diamino-alkyl-benzenes and hairdye compositions based on 5-alkoxy-2,4-diamino-alkyl-benzenes

WELLA AG16 citations74
US4835314AMay 30, 1989

2-nitroaniline derivatives

WELLA AG7 citations74
US4704474ANov 3, 1987

1,4-diamino-5-chloro-2-nitrobenzene derivatives, processes for their production and compositions containing the same for the coloration of hair

WELLA AG6 citations74
US4661114AApr 28, 1987

3-Amino-5-hydroxypyridine derivatives and hair coloring compositions containing the same

WELLA AG6 citations74
US5224965AJul 6, 1993

Composition for the oxidative dyeing of hair and new 5-halogen-2,4-diamino alkylbenzenes

WELLA AG8 citations72
US5145482ASep 8, 1992

Hair dye compositions based on 2,5-diamino-6-nitropyridine derivatives

WELLA AG5 citations63
US5037446AAug 6, 1991

2-nitroaniline derivatives and hair dyeing compositions containing same

WELLA AG4 citations63
US4960955AOct 2, 1990

Process for making 4-chloro-2-methyl-5-nitro-phenol

WELLA AG2 citations63
US4950302AAug 21, 1990

Process for the production of 2,5-diamino-6-nitro-pyridine derivatives, their use in hair dye compositions and new 2,5-diamino-6-nitropyridine derivatives

WELLA AG5 citations63
US4921504AMay 1, 1990

4-(N-ethyl-N-2-hydroxyethyl)-amino-1-(2 hydroxyethyl)-amino-2-nitrobenzene and compositions for dyeing hair containing the same

WELLA AG3 citations63
US4886516ADec 12, 1989

Diaminotetrafluoroethoxybenzenes, process for producing same and hair coloring agents containing same

WELLA AG2 citations63
US4845294AJul 4, 1989

Diaminotetrafluoroethoxybenzenes

WELLA AG3 citations63
US4713080ADec 15, 1987

Method and composition for the dyeing of hair with 2,6-diamino-pyridine derivatives

WELLA AG2 citations63
US4629467ADec 16, 1986

Use of p-ureidoalkylamino-nitrobenzene derivatives in hair dyeing compositions and new p-ureidoalkylamino-nitrobenzene derivatives

WELLA AG4 citations63
US4975093ADec 4, 1990

Hair dyeing compositions containing 2,6-dinitro-phenol-derivatives

WELLA AG3 citations62
US5382702AJan 17, 1995

Process for the production of 5-alkoxy-2,4-dinitro-alkylbenzenes

WELLA AG3 citations61
US5132461AJul 21, 1992

Process for the production of 4-[ethyl-(2'-hydroxyethyl)-amino]-1-[(2'-hydroxyethyl)-amino]-2-nitro-benzene

WELLA AG2 citations61
US5542953AAug 6, 1996

5-halogen-2,4-Bis (alkylamino)-1-alkylbenzenes and hair dye compositions containing same

WELLA AG5 citations60
US4900869AFeb 13, 1990

Process for the production of 4-[ethyl-(2'-hydroxyethyl)-amino]-1-[(2'-hydroxyethyl)-amino]-2-nitrobenzene

WELLA AG0 citations50

WELLA AKTIENGESELLSCHAT

1 patent

ABB TECHNOLOGY AG

1 patent