Chang Chun Feng

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Taoyuan, TW

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Patents Grantslast 30 patents

Information Patent Grant
Interface between connectable electrical devices
- Patent number 7,985,083
- Issue date Jul 26, 2011
- Phihong USA Corporation
- Keith Hopwood
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical plug device with folding blades
- Patent number 7,938,653
- Issue date May 10, 2011
- Phihong USA Corporation
- Keith Hopwood
- H01 - BASIC ELECTRIC ELEMENTS