Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811830 | Photochromic article and method of preparation | Huan Kiak Toh, David Lewis, Bohdan Gieslinski, Fang Chen | 2004-11-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811830 | Photochromic article and method of preparation | Huan Kiak Toh, David Lewis, Bohdan Gieslinski, Fang Chen | 2004-11-02 |