Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7537775 | Low pH skin care compositions containing dehydroacetic acid | Timothy Woodrow Coffindaffer, Robert Bao Kim Ha, Larry Richard Robinson | 2009-05-26 |
| 6290938 | Sunscreen compositions | Paul Robert Tanner, Christopher Irwin | 2001-09-18 |
| 5989528 | Sunscreen compositions | Paul Robert Tanner, Christopher Irwin | 1999-11-23 |
| 5827508 | Stable photoprotective compositions | Paul Robert Tanner, Patricia Ritenour Hertz, Christopher Irwin | 1998-10-27 |