Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7438161 | Quick release removable bridge caliper | Donald L. Burgoon, Darrick Dong, Wenqi Qian | 2008-10-21 |
| 6729445 | Piston having a cap and a brake caliper for use therewith | Wenqi Qian | 2004-05-04 |