Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11987320 | Power assisted electric bicycle, transmission device and control method | Ying-Che Shih, Sung-Ching Lin | 2024-05-21 |
| 11932350 | Power assisted electric bicycle, transmission device, and operation method | Ying-Che Shih, Sung-Ching Lin | 2024-03-19 |