Jen-Yi Wang

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Changhua, TW

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Patents Grantslast 30 patents

Information Patent Grant
Grip gear-shifter for actuating derailleur of bicycle
- Patent number 6,644,143
- Issue date Nov 11, 2003
- National Science Council
- Chan-Hua Feng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Bicycle speed control apparatus
- Patent number 6,564,670
- Issue date May 20, 2003
- National Science Council
- Chan-Hua Feng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Filter of a drinking water machine
- Patent number 5,698,096
- Issue date Dec 16, 1997
- Jen-Yi Wang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Grip gear-shifter for actuating derailleur of bicycle
- Publication number 20020000136
- Publication date Jan 3, 2002
- Chan-Hua Feng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Bicycle speed control apparatus
- Publication number 20010042421
- Publication date Nov 22, 2001
- National Science Council
- Chan-Hua Feng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS