Frank Heerdt

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Arc extinguishing switch and switching method thereof
- Patent number 8,665,569
- Issue date Mar 4, 2014
- ASCO Power Technologies, L.P.
- Frank Heerdt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arc extinguishing hybrid transfer switch and switching method
- Patent number 8,508,890
- Issue date Aug 13, 2013
- ASCO Power Technologies, L.P.
- Dapeng Zheng
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ARC EXTINGUISHING SWITCH AND SWITCHING METHOD THEREOF
- Publication number 20120125894
- Publication date May 24, 2012
- ASCO Power Technologies, LP
- Frank Heerdt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ARC EXTINGUISHING HYBRID TRANSFER SWITCH AND SWITCHING METHOD
- Publication number 20110292551
- Publication date Dec 1, 2011
- ASCO Power Technologies, LP
- Dapeng Zheng
- H01 - BASIC ELECTRIC ELEMENTS