Yu-Chi Tsai

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Chang-Hua, TW

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Patents Grantslast 30 patents

Information Patent Grant
Model stick plane
- Patent number 7,244,162
- Issue date Jul 17, 2007
- Yu-Chi Tsai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Stick fuselage of toy plane
- Patent number 6,702,639
- Issue date Mar 9, 2004
- Yu-Chi Tsai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Semi-scale toy plane
- Patent number 6,688,937
- Issue date Feb 10, 2004
- Yu-Chi Tsai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Automatic start control and clutch of toy engine powered by high pr...
- Patent number 6,461,212
- Issue date Oct 8, 2002
- Yu-Chi Tsai
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Model stick plane
- Publication number 20060178078
- Publication date Aug 10, 2006
- Yu-Chi Tsai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Piston air engine
- Publication number 20030209013
- Publication date Nov 13, 2003
- Yu-Chi Tsai
- A63 - SPORTS GAMES AMUSEMENTS