How many patents does
Hunan Electric Power Company, Zhengzhou Power Supply Company have?
patents
525
families
507
granted
18
applications
507
CN
525
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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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Hunan Electric Power Company, Zhengzhou Power Supply Company
Top ten assignees appearing on patents
2009 - 2018
2018
Hunan Electric Power Company, Zhengzhou Power Supply Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| grounding access device of oppc (opticalphase conductor) | 2 | 2012 |
| retractable insulating ladder for overhaul at high altitude | 2 | 2013 |
| theftproof method for cable tunnel | 2 | 2011 |
| method for realizing continuous dry breathing of transformer | 2 | 2012 |
| breathing drying device of intelligent transformer | 2 | 2012 |
| electrical equipment overheating fault previewing apparatus | 2 | 2011 |
| method for setting up thermal circuit model used for transformer load intelligent manage… 🛈 | 2 | 2013 |
| intelligent transformer load monitoring method | 2 | 2013 |
| intelligent transformer load management system | 2 | 2013 |
| improved method of transformer and gis (gas insulated switchgear) power distribution dev… 🛈 | 2 | 2011 |