Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8034124 | Azo derivatives containing a pyrazolinone unit for dyeing keratin fibres | Eric Metais | 2011-10-11 |
| 7892294 | Method for dyeing keratin fibers using at least one compound of azomethine type comprising a pyrazolopyridine unit | Stéphane Blais | 2011-02-22 |
| 7887601 | Compounds of azomethine type comprising a cationic pyrazolopyridine unit, for dyeing keratin fibres | Stéphane Blais | 2011-02-15 |