Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159493 | Formulation and method of manufacturing an acne extraction patch | Chao-Wei Liao, Chien-Hsin Cheng | 2000-12-12 |
| 5962012 | Cholinergic antagonist patch | Wan-Yan Lin, Chao-Wei Liao, Chien-Hsin Cheng | 1999-10-05 |