Zhengping Liu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Macromolecule-based conductive composite material and PTC element
- Patent number 9,534,102
- Issue date Jan 3, 2017
- Shanghai Changyuan Wayon Circuit Protection Co., Ltd.
- Quanquan Yang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Conductive composite material with positive temperature coefficient...
- Patent number 8,653,932
- Issue date Feb 18, 2014
- Shanghai Changyuan Wayon Circuit Protection Co., Ltd.
- Quan-quan Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Surface-mount type overcurrent protection element
- Patent number 8,576,043
- Issue date Nov 5, 2013
- Shanghai Changyuan Wayon Circuit Protection Co., Ltd.
- Zhengping Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Macromolecule-based conductive composite material and PTC element
- Publication number 20140327513
- Publication date Nov 6, 2014
- Quanquan Yang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CONDUCTIVE COMPOSITE MATERIAL WITH POSITIVE TEMPERATURE COEFFICIENT...
- Publication number 20130094116
- Publication date Apr 18, 2013
- Quan-quan Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SURFACE-MOUNT TYPE OVERCURRENT PROTECTION ELEMENT
- Publication number 20130015943
- Publication date Jan 17, 2013
- SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO., LTD.
- Zhengping Liu
- H01 - BASIC ELECTRIC ELEMENTS