Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941588 | Electric lock and display screen using the same | Jinfeng He | 2021-03-09 |
| 10631418 | LED display screen with protective devices | Jinfeng He | 2020-04-21 |
| 9661404 | Optical line terminal device and implementation method thereof | Lei Yan, Rongqin Yan, Mingshi Sun, Wei-Hung Huang, Yongfeng Zhou | 2017-05-23 |