Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12374511 | Keycap | Lei-Lung Tsai, Chang-Huan Shen | 2025-07-29 |
| 12362110 | Keycap | Che-An Li, Chang-Huan Shen, Chuang-Shu Jhuang | 2025-07-15 |
| 12211657 | Keycap | Lei-Lung Tsai, Che-An Li, Chang-Huan Shen | 2025-01-28 |
| 11626259 | Membrane circuit structure | Lei-Lung Tsai, Chin-Sung Pan | 2023-04-11 |
| 11610745 | Key structure | Lei-Lung Tsai, Chin-Sung Pan | 2023-03-21 |
| 11342133 | Key structure | Lei-Lung Tsai | 2022-05-24 |
| 11145474 | Keyboard device and key structure thereof | Chin-Sung Pan, Chien-Hung Liu, Lei-Lung Tsai, Tsu-Yi Chen, Chun-Yuan Liu | 2021-10-12 |
| 10832877 | Keycap forming method | Che-An Li | 2020-11-10 |
| 10777371 | Key structure | Lei-Lung Tsai | 2020-09-15 |
| 10699858 | Keyboard device | Che-An Li, Ding-Hsiang Pan, Chia Feng Lee | 2020-06-30 |