Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672759 | Dye composition for keratinic fibres containing sulfured metaphenylenediamines, dyeing process and new sulfured metaphenylenediamines and preparation method thereof | Alain Genet, Alain Lagrange | 1997-09-30 |
| 5667792 | Derivatives of 2,5-dihydroxyphenylcarboxylic acids, and their utilization in cosmetic or dermatological compositions with a depigmenting action | Alain Lagrange, Quang L. N'Guyen, Marie-Alix Bourboulon | 1997-09-16 |
| 5645609 | Compositions which contain and processes which use an insoluble pigment obtained by the oxidative polymerization of indole derivatives for the temporary dyeing of keratinous fibers | Herve Andrean, Louis Lezoray, Jean Cotteret, Marie-Pascale Audousset, Mireille Maubru | 1997-07-08 |
| 5637756 | Derivatives of 2,5-dihydroxyphenylcarboxylic acid | Alain Lagrange, Quang L. N'Guyen, Marie-Alix Bourboulon | 1997-06-10 |
| 5616809 | Sulfated metaaminophenol compounds | Alain Lagrange, Alain Genet | 1997-04-01 |
| 5609649 | Tinctorial composition for keratinous fibers containing oxidation dye precursors and couplers derived from 4-hydroxyindole, and dyeing method using them | Jean J. Vandenbossche, Herve Richard, Jean Cotteret | 1997-03-11 |