Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6278216 | Vehicle motor | — | 2001-08-21 |
| 5704441 | Driving controller of the electromotive bicycle | — | 1998-01-06 |
| 5581136 | Auxiliary magnetic motor (AMM) | — | 1996-12-03 |
| 5450915 | Electric motor-in-wheel | — | 1995-09-19 |
| 5272938 | Flat rim type motor drive mechanism for bicycles | Chi-Hsueh Hsu | 1993-12-28 |