Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187299 | Bidirectional self-locking damper | Lina Mao, Weixin Feng | 2021-11-30 |
| 11125299 | Self-variable force hydraulic damper | Lina Mao | 2021-09-21 |
| 10013076 | Dual spring key structure | Chih-Wen Su | 2018-07-03 |
| 8269467 | Dual-mode charger circuit | Feng Yan, Jian Liu | 2012-09-18 |
| 8203087 | Key assembly used in an electronic device | Wang Hu, Jian Liu, Li-Chung Sun, Kuo-Wei Hung | 2012-06-19 |