Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11173102 | Methods and compositions for removing color from color-treated hair | Guojin ZHANG | 2021-11-16 |
| 11166895 | Hair care compositions comprising thiolactic acid-based ionic liquids or thiolactic acid-based ionic mixtures | Magali Moreau, Julien Hitce, Maria Dalko, Alexandre Cavezza, Christian Blaise +3 more | 2021-11-09 |
| 11160742 | Methods and compositions for improving hair color fastness and rejuvenating hair color | Guojin ZHANG | 2021-11-02 |
| 11154479 | Methods of removing color from color-treated hair | Guojin ZHANG | 2021-10-26 |