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Laurent Chassot
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Praroman, CH
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Patents Grants
last 30 patents
Information
Patent Grant
Dyes for keratin fibers, the dyes containing n-benzyl-p-phenylenedi...
Patent number
RE41549
Issue date
Aug 24, 2010
Wella AG
Laurent Chassot
008 - Bleaching and dyeing
Information
Patent Grant
O-Aminophenol derivatives and colorants containing said compounds
Patent number
7,641,702
Issue date
Jan 5, 2010
Wella AG
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxidizing hair coloring agents containing m-aminophenol derivatives
Patent number
7,491,244
Issue date
Feb 17, 2009
The Procter & Gamble Company
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cationic dyes and dyestuff for keratin fibres containing said compo...
Patent number
7,455,698
Issue date
Nov 25, 2008
Wella AG
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compositions and methods for dyeing keratinous fibers
Patent number
7,156,884
Issue date
Jan 2, 2007
Wella AG
David Rozzell
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
1,3-Dihydroxybenzene derivatives and colorants containing said comp...
Patent number
7,125,428
Issue date
Oct 24, 2006
Wella AG
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Agents for dyeing keratin fibers, containing 4-aminobiphenyl-3-ol-d...
Patent number
7,122,061
Issue date
Oct 17, 2006
Wella AG
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
N-benzyl-m-phenylenediamine derivatives and dyes containing said co...
Patent number
7,074,243
Issue date
Jul 11, 2006
Wella AG
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
(P-amino-hydroxyphenyl)-acrylamide derivatives and dyes containing...
Patent number
7,070,626
Issue date
Jul 4, 2006
Wella AG
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Coloring agents for keratin fibers containing (1,1′-biphenyl)-2,4-d...
Patent number
7,056,347
Issue date
Jun 6, 2006
Wella AG
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
N-heteroarylmethyl-m-phenylenediamine derivatives-containing dyes f...
Patent number
6,997,961
Issue date
Feb 14, 2006
Wella AG
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1,3-diamino-4-(aminomethyl)—benzene derivatives and colorants conta...
Patent number
6,936,077
Issue date
Aug 30, 2005
Wella AG
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-heteroarylmethyl-p-phenylenediamine derivatives as well as oxidat...
Patent number
6,887,281
Issue date
May 3, 2005
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
1,4-Diamino-2-(thiazol-2-yl)benzene derivatives, and dyes containin...
Patent number
6,875,873
Issue date
Apr 5, 2005
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
1,4-diamino-2-alkenylbenzene derivatives, and dyes containing these...
Patent number
6,849,766
Issue date
Feb 1, 2005
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
N-heteroarylmethyl-p-phnylendiamine derivatives and compounds conta...
Patent number
6,849,097
Issue date
Feb 1, 2005
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
P-aminophenols and colorants containing said compounds
Patent number
6,840,965
Issue date
Jan 11, 2005
Wella Aktiengesellschaft
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Dyes for keratin fibres containing 1,3-diamino-4-heteroarylbenzene...
Patent number
6,811,573
Issue date
Nov 2, 2004
Wella Aktiengesellschaft
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted 2-aminoalkyl-1,4-Diaminobenzene compounds and oxidation...
Patent number
6,800,097
Issue date
Oct 5, 2004
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Substituted 2-aminoalkyl-1,4-diaminobenzene compounds and oxidation...
Patent number
6,780,998
Issue date
Aug 24, 2004
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
2-hydroxy-5-amino-biphenyl-derivatives and oxidative hair coloring...
Patent number
6,749,644
Issue date
Jun 15, 2004
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
P-diaminobenzene derivatives and dyes containing said compounds
Patent number
6,699,296
Issue date
Mar 2, 2004
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
3-(2,5-diaminophenyl)-acrylamide derivatives and coloring agents co...
Patent number
6,699,990
Issue date
Mar 2, 2004
Wella Aktiengesellschaft
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-benzyl-p-phenylenediamine-derivatives containing coloring agents...
Patent number
6,689,174
Issue date
Feb 10, 2004
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Substituted 1,4-diaminobenzene compounds and oxidation dye precurso...
Patent number
6,685,751
Issue date
Feb 3, 2004
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Substituted 1,4 diaminobenzene compounds and oxidation dye precurso...
Patent number
6,602,302
Issue date
Aug 5, 2003
Wella AG
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Diaminopyrazole derivatives and dyes containing said compounds
Patent number
6,600,050
Issue date
Jul 29, 2003
Wella AG
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
p-Aminophenol derivative compounds and dye compositions containing...
Patent number
6,592,631
Issue date
Jul 15, 2003
Wella AG
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Oxidizing hair coloring agents containing 2,5-diamino-1-phenylbenze...
Patent number
6,500,213
Issue date
Dec 31, 2002
Wella Aktiengesellschaft
Hans-Juergen Braun
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Diaminobenzene derivative compounds and dye compositions containing...
Patent number
6,461,388
Issue date
Oct 8, 2002
Wella Aktiengesellschaft
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
Novel O-Aminophenol Derivatives and Colorants Containing Said Compo...
Publication number
20080235882
Publication date
Oct 2, 2008
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Cationic Dyes and Dyestuff for Keratin Fibres Containing Said Compo...
Publication number
20070258929
Publication date
Nov 8, 2007
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
P-diaminobenzene derivatives and dyes containing these compounds
Publication number
20070169287
Publication date
Jul 26, 2007
The Procter & Gamble Company
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Oxidizing hair coloring agents containing m-aminophenol derivatives
Publication number
20070033745
Publication date
Feb 15, 2007
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Agents for dyeing keratin fibers, containing 4-amino-biphenyl-3-ol-...
Publication number
20050155160
Publication date
Jul 21, 2005
WELLA AKTIENGESELLSCHAFT
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
N-heteroarylmethyl-m-phenylenediamine derivatives-containing dyes f...
Publication number
20050081310
Publication date
Apr 21, 2005
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
N-heteroarylmethyl-p-phenylenediamine derivatives as well as oxidat...
Publication number
20050015898
Publication date
Jan 27, 2005
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Compositions and methods for dyeing keratinous fibers
Publication number
20040158936
Publication date
Aug 19, 2004
David Rozzell
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
1,3-Dihydroxybenzene derivatives and colorants containing said comp...
Publication number
20040016063
Publication date
Jan 29, 2004
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
(P-amino-hydroxyphenyl)-acrylamide derivatives and dyes containing...
Publication number
20030192132
Publication date
Oct 16, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
N-benzyl-m-phenylenediamine derivatives and dyes containing said co...
Publication number
20030182735
Publication date
Oct 2, 2003
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Colouring agents for keratin fibres containing (1.1'-biphenyl)-2.4-...
Publication number
20030172470
Publication date
Sep 18, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
1,3-diamino-4-(aminomethyl) - benzene derivatives and colorants con...
Publication number
20030172471
Publication date
Sep 18, 2003
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
P-diaminobenzene derivatives and dyes containing said compounds
Publication number
20030145764
Publication date
Aug 7, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
3-(2,5-Diaminophenyl)-acrylamide derivatives and colouring agents c...
Publication number
20030140431
Publication date
Jul 31, 2003
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Novel 1,4-diamino-2-alkenylbenzene derivatives , and dyes containin...
Publication number
20030121110
Publication date
Jul 3, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Novel diaminopyrazole derivatives and dyes containing said compounds
Publication number
20030115684
Publication date
Jun 26, 2003
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Novel 1,4-diamino-2-(thiazol-2-yl)benzene derivatives and dyes cont...
Publication number
20030115683
Publication date
Jun 26, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Substituted 1,4-diaminobenzene compounds and oxidation dye precurso...
Publication number
20030110578
Publication date
Jun 19, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Novel p-aminophenols and colorants containing said compounds
Publication number
20030110577
Publication date
Jun 19, 2003
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Dyes for keratin fibres containing 1,3-diamino-4-heteroarylbenzene...
Publication number
20030093867
Publication date
May 22, 2003
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Substituted 2-aminoalkyl-1,4-Diaminobenzene compounds and oxidation...
Publication number
20030070241
Publication date
Apr 17, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
N-heteroarylmethyl-p-phnylendiamine derivatives and compounds conta...
Publication number
20030070240
Publication date
Apr 17, 2003
Laurent Chassot
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Substituted 2-aminoalkyl-1,4diaminobenzene compounds and oxidation...
Publication number
20020189033
Publication date
Dec 19, 2002
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
N-benzyl-p-phenylenediamine-derivatives containing colouring agents...
Publication number
20020166181
Publication date
Nov 14, 2002
Laurent Chassot
C07 - ORGANIC CHEMISTRY
Information
Patent Application
p-aminophenol derivative compounds and dye compositions containing...
Publication number
20010054207
Publication date
Dec 27, 2001
Laurent Chassot
C07 - ORGANIC CHEMISTRY