How many patents does
Electric Power Research Institute, Yunnan Power Grid Corporation have?
patents
255
families
196
granted
59
applications
196
CN
255
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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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Electric Power Research Institute, Yunnan Power Grid Corporation
Top ten assignees appearing on patents
2009 - 2018
2009
2018
Electric Power Research Institute, Yunnan Power Grid Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| protection system and method for intelligent flexible direct-current transmission and di… 🛈 | 2 | 2016 |
| transformer safety state assessment method based on oil chromatography | 2 | 2015 |
| high current dc filter | 2 | 2015 |
| online analysis and evaluation method for stable running areas of hydroelectric generati… 🛈 | 2 | 2014 |
| fault diagnosis method for intelligent substation | 2 | 2014 |
| air preheater air leakage calculation method | 2 | 2014 |
| spark gap protection device | 2 | 2015 |
| method for controlling independent pitch angle of pitch-variable control wind driven gen… 🛈 | 2 | 2014 |
| novel transformer anti-aging mixed insulating oil and preparation method thereof | 2 | 2014 |
| high voltage output device and method for feed line automation test | 2 | 2015 |