Kin Yu Wong

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Chaiwan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electrical switch
- Patent number 7,754,989
- Issue date Jul 13, 2010
- Defond Components Limited
- Kin Yu Wong
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical switch
- Patent number 7,723,632
- Issue date May 25, 2010
- Defond Components Limited
- Kin Yu Wong
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ELECTRICAL SWITCH
- Publication number 20080264769
- Publication date Oct 30, 2008
- DEFOND COMPONENTS LIMITED
- Kin Yu Wong
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRICAL SWITCH
- Publication number 20080156627
- Publication date Jul 3, 2008
- DEFOND COMPONENTS LIMITED
- Kin Yu Wong
- H01 - BASIC ELECTRIC ELEMENTS