Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4622317 | Treatment of skin over androgenicity using compositions containing pregnenolone | Sung Lan Hsia, Walter Voigt, Marty Sawaya | 1986-11-11 |
| 4593021 | Treatment of skin over androgenicity using compositions containing pregnenolone | Sung Lan Hsia, Walter Voigt, Marty Sawaya | 1986-06-03 |