Issued Patents 2004
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |