Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437931 | Optically variable multilayer film and optically variable pigment obtained therefrom | Rung-Ywan Tsai, Chaur-Tsang Wei, Chii-Hua Lee, Fang-Chuan Ho | 1995-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437931 | Optically variable multilayer film and optically variable pigment obtained therefrom | Rung-Ywan Tsai, Chaur-Tsang Wei, Chii-Hua Lee, Fang-Chuan Ho | 1995-08-01 |