Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10004674 | Substituted p-phenylenediamines as new oxidation dye precursor products of the developer type | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2018-06-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10004674 | Substituted p-phenylenediamines as new oxidation dye precursor products of the developer type | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2018-06-26 |