Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12391900 | Method for removing silver mirroring from surface of black-and-white negative film | Yuhu Li, Jianxu Luo, Zhihui Jia, Ersudai Ma | 2025-08-19 |
| D1066780 | Lampshade | Xiaguang Liu, Wenhao Zhu | 2025-03-11 |
| D1035110 | Star light projector | Xiaguang Liu, Qingzhan Xu | 2024-07-09 |
| 9841666 | Restoration solution for cine film bubble and restoration method | Yuhu Li, Zhihui Jia, Ting Zhou, Meirong Shi | 2017-12-12 |
| 9250511 | Shape-restoring device and a restoring method for distorted filmstrips | Yuhu Li, Jing Cao | 2016-02-02 |