Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437860 | Skin and scalp barrier for use with hair treatment products | David Jarvis, Joseph Bachir Jones | 1995-08-01 |
| 4605018 | Method of treating hair and anhydrous composition related thereto | Charles R. Hendrix, Jr. | 1986-08-12 |
| 4373540 | Hair straightening process and hair curling process and compositions therefor | — | 1983-02-15 |
| 4324263 | Hair straightening process and hair curling process and compositions therefor | — | 1982-04-13 |
| 4314572 | Method and composition for hair treatment | Donald R. Cowsar | 1982-02-09 |
| 4304244 | Hair straightening process and hair curling process and compositions therefor | — | 1981-12-08 |
| 4303085 | System and method for hair treatment | Donald R. Cowsar | 1981-12-01 |