Tuan Chang

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Taichung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Brake structure of skateboard
- Patent number 6,811,165
- Issue date Nov 2, 2004
- Tuan Chang
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Resilient force-adjusting structure for skate board
- Patent number 6,616,155
- Issue date Sep 9, 2003
- Chang Tuan
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Skate having an easily assembling structure
- Patent number 6,019,377
- Issue date Feb 1, 2000
- Jui-Hsia Chiu
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Brake structure of skateboard
- Publication number 20040100056
- Publication date May 27, 2004
- Chang Tuan
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Resilient force-adjusting structure for skate board
- Publication number 20030057670
- Publication date Mar 27, 2003
- Chang Tuan
- A63 - SPORTS GAMES AMUSEMENTS