Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304370 | Hair relaxer composition and associated methods | Geoffrey Hawkins, Gustave J. Klein | 1994-04-19 |
| 5205300 | Method for determining effectiveness of relaxer treatment | Geoffrey Hawkins, Gustave J. Klein | 1993-04-27 |
| 4530830 | Quaternary ammonium hydroxide hair relaxer composition | William McKaba | 1985-07-23 |