How many patents does
Zhengzhou Power Supply Company Of State Grid Hanan Electric Power Company have?
patents
499
families
463
granted
32
applications
467
CN
494
US
2
JP
2
WO
1
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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Zhengzhou Power Supply Company Of State Grid Hanan Electric Power Company
Top ten assignees appearing on patents
2009 - 2018
2009
2018
Zhengzhou Power Supply Company Of State Grid Hanan Electric Power Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| movable maintenance square warehouse | 4 | 2016 |
| device and method for calculating trap parameters by measuring attenuation of short-circ… 🛈 | 4 | 2014 |
| foreign matter eliminating method for overhead line | 2 | 2015 |
| power grid disaster monitoring and rush repairing system and method based on geographic … 🛈 | 2 | 2015 |
| duplex double-protection method and device for important crossing regions of overhead co… 🛈 | 2 | 2017 |
| laying method and apparatus for high-rise bracket cables in tunnel | 2 | 2016 |
| convenient, light-weight and adjustable large-tonnage cable laying apparatus | 2 | 2016 |
| backup-protection confection method and device of transmission overhead ground wire for … 🛈 | 2 | 2016 |
| line fault detection method based on carbon fiber conductor | 2 | 2015 |
| transformer load real-time control method | 2 | 2015 |