Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8632849 | Anti-counterfeit film with an amphichroic pattern and a preparation method thereof | Liangheng Xu, Yun Gao, Zhixi Zhang | 2014-01-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8632849 | Anti-counterfeit film with an amphichroic pattern and a preparation method thereof | Liangheng Xu, Yun Gao, Zhixi Zhang | 2014-01-21 |