Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6736411 | Locking device for a detachable skate of sport shoe | Chen Wang, Chun-Cheng Chang | 2004-05-18 |
| 6523836 | Wheel assembly for roller skate | Chun-Cheng Chang | 2003-02-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6736411 | Locking device for a detachable skate of sport shoe | Chen Wang, Chun-Cheng Chang | 2004-05-18 |
| 6523836 | Wheel assembly for roller skate | Chun-Cheng Chang | 2003-02-25 |