Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764523 | Two-part aqueous composition for oxidative coloration of hair | Stephen Casperson, Zubaida Khan | 2004-07-20 |
| 6547833 | Two-part aqueous composition for oxidative coloration of hair | Stephen Casperson, Zubaida Khan, Slavica Grogin | 2003-04-15 |