Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11656437 | Optical imaging system including six lenses of −−++−+ refractive powers | Fujian Dai, Liefeng Zhao | 2023-05-23 |
| 11592647 | Optical imaging lens | Fujian Dai, Liefeng Zhao | 2023-02-28 |