Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7678158 | Compositions for oxidatively dyeing keratin fibers and methods for using such compositions | Guiru Zhang, Margaret Popp, Bryan Patrick Murphy | 2010-03-16 |
| 7507262 | Compositions for oxidatively dyeing keratin fibers and methods for using such compositions | Guiru Zhang, Margaret Popp, Bryan Patrick Murphy | 2009-03-24 |
| 7303592 | Hair coloring compositions for use in oxidative hair dyeing | Guiru Zhang, Bryan Patrick Murphy | 2007-12-04 |