Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10711490 | One-side rotating arc lock | Yongjun Zhang, Guoqiang Li | 2020-07-14 |
| 10623708 | Mobile device and method for advertising projecting | Steve Yeung, Qingyun Lin | 2020-04-14 |
| 10613318 | Bi-directional excitation color wheel and light source system thereof | Steve Yeung, Augustus Yeung, Manying Ning | 2020-04-07 |