Issued Patents All Time
Showing 51–75 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6840965 | P-aminophenols and colorants containing said compounds | Laurent Chassot | 2005-01-11 |
| 6835212 | Agent and method for dyeing keratin fibers | David Rozzell, Guido Sauter | 2004-12-28 |
| 6811573 | Dyes for keratin fibres containing 1,3-diamino-4-heteroarylbenzene derivatives and novel 1,3-diamino-4-heteroarylbenzene derivatives | Laurent Chassot | 2004-11-02 |
| 6800097 | Substituted 2-aminoalkyl-1,4-Diaminobenzene compounds and oxidation dye precursor compositions containing same | Laurent Chassot | 2004-10-05 |
| 6780998 | Substituted 2-aminoalkyl-1,4-diaminobenzene compounds and oxidation dye precursor compositions containing same | Laurent Chassot | 2004-08-24 |
| 6749645 | Use of 4-nitro-2,1,3,-benzoxadiazole derivatives as dyes in coloring agents for keratin fibres | Cecile Pasquier, Véronique Charrière | 2004-06-15 |
| 6749644 | 2-hydroxy-5-amino-biphenyl-derivatives and oxidative hair coloring agents containing said compounds | Laurent Chassot | 2004-06-15 |
| 6726730 | 7-Nitro-2,1,3-benzoxadiazole derivatives and 7-nitro,2,1,3-benzthiadiazole derivatives and dyes, which contain these compounds and which are used for dying keratin fibers | Gisela Umbricht, Sylviane Oberson, Catherine Mueller | 2004-04-27 |
| 6699990 | 3-(2,5-diaminophenyl)-acrylamide derivatives and coloring agents containing said compounds | Laurent Chassot | 2004-03-02 |
| 6689174 | N-benzyl-p-phenylenediamine-derivatives containing coloring agents for keratin fibres and novel n-benzyl-p-phenylenediamine-derivatives | Laurent Chassot | 2004-02-10 |
| 6685751 | Substituted 1,4-diaminobenzene compounds and oxidation dye precursor compositions containing same | Laurent Chassot | 2004-02-03 |
| 6669739 | Agent for coloring fibers and method for temporarily coloring fibers | Guido Sauter, Nadia Reichlin | 2003-12-30 |
| 6652601 | Agent for dyeing fibers comprising an indoline/indolium derivative | Guido Sauter, Nadia Reichlin | 2003-11-25 |
| 6648923 | Compositions containing 1,4-diamino-2-methoxymethylbenzene and salts thereof and methods for dyeing keratin fibers with same | Otto Goettel, Aline Pirrello, Andre Hayoz | 2003-11-18 |
| 6602302 | Substituted 1,4 diaminobenzene compounds and oxidation dye precursor compositions containing same | Laurent Chassot | 2003-08-05 |
| 6600050 | Diaminopyrazole derivatives and dyes containing said compounds | Laurent Chassot | 2003-07-29 |
| 6592631 | p-Aminophenol derivative compounds and dye compositions containing same | Laurent Chassot | 2003-07-15 |
| 6570019 | Cationic pyrrolo-pyrrol-derivatives, method for producing them and colorants for keratin fibers, containing these compounds | Cecile Pasquier, Patrick Wyss | 2003-05-27 |
| 6558433 | Process for dyeing keratin fibers comprising 1,4-diamino-2-methoxymethylbenzene and salts thereof | Otto Goettel, Aline Pirrello, Andre Hayoz | 2003-05-06 |
| 6554871 | Oxidative hair dye precursor compositions containing 4-5-diaminopyrazole, 5-amino-2-methylphenol and m-phenylenediamine compounds and method of dyeing hair | — | 2003-04-29 |
| 6503282 | Means and method for dying keratinic fibers | — | 2003-01-07 |
| 6500213 | Oxidizing hair coloring agents containing 2,5-diamino-1-phenylbenzene derivatives and novel 2,5-diamino-1-phenylbenzene derivatives | Laurent Chassot | 2002-12-31 |
| 6436152 | Substituted 2-aminoalky-1,4-diaminobenzene compounds and oxidation dye precursor compositions containing same | Laurent Chassot | 2002-08-20 |
| 6379400 | Dye compositions and methods of dyeing keratin fibers | Pascal Andre Semadeni | 2002-04-30 |
| 6224856 | Means and method for tinting keratin fibers, particularly human hair | — | 2001-05-01 |