Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10919334 | Anti-counterfeiting pattern having optically variable structure and preparation method thereof | Xing Zhang, QINGFEI MENG, Yong Zhang, Xiaoquan Zhou, Guolin Yuan | 2021-02-16 |