Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6793111 | Outer assembling mechanism of backpack for carrying detachable skate | — | 2004-09-21 |
| 6736411 | Locking device for a detachable skate of sport shoe | Chen Wang, Hong-Young Chiu | 2004-05-18 |