Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11442354 | Projection screen and projection system | Jianjun Li, Changming Yang, Yun Zhao | 2022-09-13 |
| 11231644 | Fresnel projection screen and projection system | Wei Xiao, Chao WANG, Fei Zhao, Xiaoping Li | 2022-01-25 |