Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8277700 | Process for preparing a photochromic polymeric composition, thus obtained polymeric composition and use thereof | Zhengfeng Zhang | 2012-10-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8277700 | Process for preparing a photochromic polymeric composition, thus obtained polymeric composition and use thereof | Zhengfeng Zhang | 2012-10-02 |