Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5454841 | Compositions and method for temporarily coloring hair using a complex of water soluble melanin and a cationic material | G. Wenke | 1995-10-03 |
| 4792341 | Hair photobleaching | Stan D. Kozikowski, J. Menkart | 1988-12-20 |