Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644143 | Grip gear-shifter for actuating derailleur of bicycle | Jen-Ji Wang, I-Chao Yan, Te-Sheng TSENG | 2003-11-11 |
| 6564670 | Bicycle speed control apparatus | Jen-Ji Wang | 2003-05-20 |
| 6467368 | Hand operated bicycle gear transmission device | Chun Li | 2002-10-22 |
| 5865698 | Rear derailleur for use in bicycles | Jack Huang, Chung-Ping Chiang | 1999-02-02 |
| 5673594 | Speed change lever apparatus for use in bicycles | Jack Huang, Chung-Ping Chiang, Yuh-Ming Hwang | 1997-10-07 |
| 5660083 | Gear shifting device for a multi-speed bicycle | Jack Huang, Yuh-Ming Hwang | 1997-08-26 |
| 5632226 | Bicycle speed indicator | Jack Huang, Chung-Ping Chiang | 1997-05-27 |
| 5588331 | Rotary shifter for bicycle | Jack Huang, Chung-Ping Chiang | 1996-12-31 |
| 5409422 | Two sprocket tooth trimming methods and the structure thereof for the multi-stage sprocket assembly in a bicycle | Ching-Huan Tseng, Chwan-Cherng Wang, Chung-Biau Tsay, Chang-Dau Yan | 1995-04-25 |
| 5361645 | Shift lever apparatus for use in bicycle | Jiann-Chyun Kang | 1994-11-08 |