Issued Patents All Time
Showing 25 most recent of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12233146 | Process for dyeing keratin fibers using a direct dye and a saccharinate salt and composition comprising them | Olivier Guerard | 2025-02-25 |
| 11672747 | Process for dyeing keratin materials using a direct dye and an aliphatic ammonium salt, and composition comprising same | Olivier Guerard | 2023-06-13 |
| 11504318 | Symmetric azomethine direct dyes, process for their preparation, cosmetic composition comprising at least one such dye and use thereof | Stéphane Blais, Aziz Fadli | 2022-11-22 |
| 11406580 | Use of dihydroisoquinolinium salts for treating keratin materials, compositions and implementation processes | Aziz Fadli, Alexandra Charrier | 2022-08-09 |
| 11406579 | Use of dihydroisoquinolinium double derivatives for treating keratin materials, compositions and implementation processes | Aziz Fadli | 2022-08-09 |
| 11117864 | Use for dyeing keratin fibers of a compound of azomethine type bearing a quinoline-derived unit | Aziz Fadli | 2021-09-14 |
| 11083679 | Use of substituted dihydroisoquinolinium salts for treating keratin materials, compositions and implementation processes | Aziz Fadli, Alexandra Charrier | 2021-08-10 |
| 10927259 | Dissymmetric azomethine direct dyes and process for their preparation, cosmetic composition comprising at least one such dye and use thereof | Stéphane Blais, Aziz Fadli | 2021-02-23 |
| 10889718 | Azomethine direct dyes bearing at least one cationic charge, cosmetic composition comprising at least one such dye, implementation process therefor and use thereof | Stéphane Blais, Aziz Fadli | 2021-01-12 |
| 10765615 | Use of particular pyridinium salts for the treatment of keratin substances, compositions and implementation methods | Leïla Hercouet | 2020-09-08 |
| 10731038 | (Dis)symmetric azomethine-type direct dye comprising at least one pyrazolopyridine unit, process for dyeing keratin fibers using this dye | Stéphane Blais, Aziz Fadli | 2020-08-04 |
| 10383803 | Dye composition using at least one coupler of meta-phenylenediamine type substituted in position 4 in a medium comprising a fatty substance, processes and device | — | 2019-08-20 |
| 9585824 | Dye composition using at least one coupler of meta-phenylenediamine type substituted in position 2 in a medium comprising a fatty substance, processes and device | — | 2017-03-07 |
| 9554977 | Triaromatic azomethine direct dyes, dye composition comprising at least one such dye, method of implementation and use | Madeleine Leduc, Olivier Guerard | 2017-01-31 |
| 9439844 | Tri-aromatic azomethine direct dyes comprising at least one unit derived from resorcinol, dyeing composition, method and use | Madeline Leduc | 2016-09-13 |
| 9233057 | Particular quinone direct dyes, dye composition comprising at least one such dye, implementation process therefor and use thereof | — | 2016-01-12 |
| 9226883 | Particular azomethine direct dyes, dye composition comprising at least one such compound, implementation process therefore and use thereof | Madeleine Leduc | 2016-01-05 |
| 8771376 | Composition comprising at least one 2-pyrrolidone functionalized with an ester or amide radical, and at least one pigment or direct dye, for dyeing keratin materials | Madeleine Leduc, Christian Blaise | 2014-07-08 |
| 8608808 | Composition for dyeing keratin fibers, including at least one ortho-diphenol derivative, one particular metal derivative, and one alkalinizing agent | Christophe Rondot, Alexandre Cavezza, Franco Manfre | 2013-12-17 |
| 8585779 | Composition comprising at least one 2-pyrrolidone functionalized in the 4 position with a carboxylic acid or amide, and at least one direct dye or a pigment for dyeing keratin fibres | Madeleine Leduc | 2013-11-19 |
| 8551189 | Composition comprising at least one 1,8-dihydroxynaphthalene derivative and at least one basifying agent different from aqueous ammonia, process for dyeing keratin fibres using the composition | Christophe Rondot, Karine Picolet | 2013-10-08 |
| 8105394 | Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors | Madeleine Leduc, Eric Metais, Christophe Rondot | 2012-01-31 |
| 8083809 | Azomethine direct dyes or reduced precursors of these dyes obtained from 2-chloro-3-amino-6-methylphenol, and hair dyeing method starting from these dyes and precursors | Madeleine Leduc, Eric Metais, Christophe Rondot | 2011-12-27 |
| 8066782 | Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors | Madeleine Leduc, Eric Metais, Christophe Rondot | 2011-11-29 |
| 7857864 | Composition for the dyeing of keratin fibers comprising at least one 3-amino-pyrazolopyridine derivative | Aziz Fadli, Laurent Vidal | 2010-12-28 |