Issued Patents 2017
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9849072 | Method of coloring hair with direct dye compounds | Guiru Zhang, Peter Marte Torgerson | 2017-12-26 |
| 9844501 | Compositions for dyeing hair with cationic direct dyes | Guiru Zhang, Peter Marte Torgerson | 2017-12-19 |
| 9839592 | Fluorescent compounds for treating hair | Guiru Zhang | 2017-12-12 |
| 9839593 | Method of coloring hair with direct dye compounds | Guiru Zhang, Peter Marte Torgerson | 2017-12-12 |
| 9758469 | Process for the preparation of 2-substituted-1,4-benzenediamines and salts thereof | Garry Steven Garrett, Heike Gertrud Abel, Armin Osan, John Michael Gardlik, Markus Speckbacher +1 more | 2017-09-12 |
| 9688609 | Telescoping synthesis of 2-methoxymethyl-P-phenylenediamine | Heike Gertrud Abel, Armin Osan, Garry Steven Garrett, John Michael Gardlik, Markus Speckbacher +1 more | 2017-06-27 |