Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690697 | Set, process, and device for dyeing keratinous fibers with indoles or indolines and manganese salts at specific pH ranges | — | 1997-11-25 |
| 5685882 | Use of guar gum in non-rinsed compositions for the dyeing of keratin fibers | Marie-Pascale Audousset | 1997-11-11 |
| 5655552 | Process for the permanent reshaping of keratinous material | — | 1997-08-12 |
| 5628991 | Cosmetic composition containing a diaminoalkane as an odorless alkalifying agent | Claude Dubief, Jean Cotteret | 1997-05-13 |
| 5595197 | Process for directly coloring keratinous fibres using sulphonic dyes and water vapor | Jean-Michel Sturla | 1997-01-21 |