Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10731038 | (Dis)symmetric azomethine-type direct dye comprising at least one pyrazolopyridine unit, process for dyeing keratin fibers using this dye | Stéphane Sabelle, Stéphane Blais | 2020-08-04 |
| 10568821 | Dye composition comprising a para-phenylenediamine oxidation base and a heterocyclic oxidation base | Valérie Nicou, Isabelle Rollat | 2020-02-25 |