Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10639254 | Dye composition comprising a para-phenylenediamine oxidation base and an additional base | Frédéric Legrand, Isabelle Rollat | 2020-05-05 |
| 10568821 | Dye composition comprising a para-phenylenediamine oxidation base and a heterocyclic oxidation base | Isabelle Rollat, Aziz Fadli | 2020-02-25 |
| 10537510 | Dye composition comprising a para-phenylenediamine oxidation base and a particular coupler | Céline Sellier, Arnaud Hucher, Aurélie Camblong | 2020-01-21 |