Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11154475 | Method for coloring or bleaching hair fibers | Gijsbert Kroon, Thi Diem Truc Tran | 2021-10-26 |
| 10945934 | Method of strengthening hair fibers and protecting dyed hair color from fading or wash-out | Gijsbert Kroon, Xiaochun Zhang | 2021-03-16 |