I Fen Cheng

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Double layer blocks capable of turning endlessly
- Patent number 6,786,797
- Issue date Sep 7, 2004
- I-Fen Cheng
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Renovated structure of bowl with function of rotating and changeabl...
- Patent number 6,564,962
- Issue date May 20, 2003
- I Fen Cheng
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
Turning coaster
- Publication number 20030001061
- Publication date Jan 2, 2003
- I Fen Cheng
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...