Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193328 | Unequal-torque coil spring and spring motor thereof | Hsien-Te HUANG | 2021-12-07 |
| 10947778 | Unequal-torque coil spring and spring motor thereof | Hsien-Te HUANG | 2021-03-16 |
| 10174547 | Unequal-torque coil spring and a spring motor thereof | Hsien-Te HUANG | 2019-01-08 |