Chunkai Zheng

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Yueqing City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetic switch
- Patent number 11,545,311
- Issue date Jan 3, 2023
- KEDU ELECTRIC CO., LTD
- Chunkai Zheng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Leakage protector
- Patent number 11,495,427
- Issue date Nov 8, 2022
- KEDU ELECTRIC CO., LTD.
- Chunkai Zheng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electric switch
- Patent number 11,456,126
- Issue date Sep 27, 2022
- KEDU ELECTRIC CO., LTD.
- Chunkai Zheng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Timing leakage protection circuit and device containing same
- Patent number 11,411,385
- Issue date Aug 9, 2022
- KEDU ELECTRIC CO., LTD.
- Chunkai Zheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Integrated switch
- Patent number 11,120,954
- Issue date Sep 14, 2021
- KEDU ELECTRIC CO., LTD
- Chunkai Zheng
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC SWITCH
- Publication number 20210313124
- Publication date Oct 7, 2021
- KEDU ELECTRIC CO., LTD.
- Chunkai ZHENG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LEAKAGE PROTECTION SWITCH
- Publication number 20210305803
- Publication date Sep 30, 2021
- KEDU ELECTRIC CO., LTD.
- Chunkai ZHENG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LEAKAGE PROTECTOR
- Publication number 20210296071
- Publication date Sep 23, 2021
- KEDU ELECTRIC CO., LTD.
- Chunkai ZHENG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TIMING LEAKAGE PROTECTION CIRCUIT AND DEVICE CONTAINING SAME
- Publication number 20210296880
- Publication date Sep 23, 2021
- KEDU ELECTRIC CO., LTD.
- Chunkai ZHENG
- G01 - MEASURING TESTING
Information Patent Application
ELECTROMAGNETIC SWITCH
- Publication number 20210074488
- Publication date Mar 11, 2021
- KEDU ELECTRIC CO., LTD.
- Chunkai Zheng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INTEGRATED SWITCH
- Publication number 20200373102
- Publication date Nov 26, 2020
- KEDU ELECTRIC CO., LTD.
- Chunkai Zheng
- H01 - BASIC ELECTRIC ELEMENTS