Hongzhong Ma

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
GIS leak monitoring method based on vibration signal
- Patent number 10,422,715
- Issue date Sep 24, 2019
- STATE GRID JIANGSU ELECTRIC POWER COMPANY NANJING POWER SUPPLY COMPANY
- Chunning Wang
- G01 - MEASURING TESTING
Information Patent Grant
Transformer noise suppression method
- Patent number 10,083,709
- Issue date Sep 25, 2018
- STATE GRID JIANGSU ELECTRIC POWER COMPANY NAN JING POWER SUPPLY COMPANY
- Ning Jiang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Fault diagnosis and preliminary location system and method for tran...
- Patent number 9,404,957
- Issue date Aug 2, 2016
- JIANGSU NANJING POWER SUPPLY COMPANY
- Kai Chen
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
A transformer noise suppression method
- Publication number 20170249955
- Publication date Aug 31, 2017
- STATE GRID JIANGSU ELECTRIC POWER COMPANY NANJING POWER SUPPLY COMPANY
- Ning JIANG
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
GIS leak monitoring method based on vibration signal
- Publication number 20170234758
- Publication date Aug 17, 2017
- STATE GRID JIANGSU ELECTRIC POWER COMPANY NANJING POWER SUPPLY COMPANY
- Chunning WANG
- G01 - MEASURING TESTING
Information Patent Application
Fault diagnosis and preliminary location system and method for tran...
- Publication number 20140118003
- Publication date May 1, 2014
- JIANGSU ELECTRIC POWER COMPANY
- Kai Chen
- G01 - MEASURING TESTING