Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11204651 | Keyboard device and key structure thereof | Li-Qiang Chen | 2021-12-21 |
| 11094479 | Key structure | Xiao-Jun Chu, Li-Qiang Chen, Sheng-An Tsai, Chun-Che Wu | 2021-08-17 |
| 10903028 | Rotary switch structure | Li Deng, Li-Qiang Chen | 2021-01-26 |