Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11145474 | Keyboard device and key structure thereof | Chin-Sung Pan, Chien-Hung Liu, Lei-Lung Tsai, Sheng-Fan Chang, Tsu-Yi Chen | 2021-10-12 |
| 10903024 | Keyboard device | Tsu-Yi Chen, Lei-Lung Tsai | 2021-01-26 |