Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11993478 | Slow retraction mechanism, locking-type slow retraction device and winding device | Guizhong Ge | 2024-05-28 |
| 7328483 | Hinge assembly with universally biased cam | Yong-Jian Chen | 2008-02-12 |