Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10661126 | Ball structure and method for making the same | Chung-Chih Feng, Chun-Wei Wu | 2020-05-26 |
| 10357691 | Ball structure and method for making the same | Chung-Chih Feng, Chun-Wei Wu | 2019-07-23 |
| 8979107 | Easy-pedaling and labor-saving bicycle | — | 2015-03-17 |