Hung-Fu Sung

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Taichung Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Shock absorbing and sound producing device for tennis racket
- Patent number 7,335,118
- Issue date Feb 26, 2008
- Hung-Fu Sung
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Shock absorbing device for racket
- Patent number 7,014,579
- Issue date Mar 21, 2006
- Hung-Fu Sung
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Device for deadening noise and absorbing shock of tennis racket str...
- Patent number 6,755,756
- Issue date Jun 29, 2004
- Hung-Fu Sung
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SHOCK ABSORBING DEVICE FOR RACKET
- Publication number 20060079352
- Publication date Apr 13, 2006
- Hung-Fu Sung
- A63 - SPORTS GAMES AMUSEMENTS