Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5921363 | Free wheel rotary body structure of a bicycle | Chung-Ping Chiang, Pai-Hsiang Hsu, Yuh-Ming Hwang | 1999-07-13 |
| 5876296 | Gear shifting sprocket set for bicycle chain wheel | Pai-Hsiang Hsu, Jung-Ping Chiang | 1999-03-02 |
| 5732593 | Bicycle speed changing apparatus | Yuh-Ming Hwang, Chung-Ping Chiang | 1998-03-31 |
| 5409422 | Two sprocket tooth trimming methods and the structure thereof for the multi-stage sprocket assembly in a bicycle | Chan-Hua Feng, Ching-Huan Tseng, Chwan-Cherng Wang, Chung-Biau Tsay | 1995-04-25 |