Wilson Wai Cheong CHU

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electrical switch
- Patent number 8,907,233
- Issue date Dec 9, 2014
- Defond Components Limited
- Wilson Wai Cheong Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical switch
- Patent number 8,859,915
- Issue date Oct 14, 2014
- Defond Components Limited
- Wilson Wai Cheong Chu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ELECTRICAL SWITCH
- Publication number 20130220788
- Publication date Aug 29, 2013
- DEFOND COMPONENTS LIMITED
- Wilson Wai Cheong CHU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRICAL SWITCH
- Publication number 20130105293
- Publication date May 2, 2013
- DEFOND COMPONENTS LIMITED
- Wilson Wai Cheong CHU
- H01 - BASIC ELECTRIC ELEMENTS