How many patents does
Nr Electric Company have?
patents
390
families
52
granted
85
applications
305
CN
94
WO
53
US
53
EP
50
KR
36
JP
11
GB
2
RoW
91
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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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Nr Electric Company
Top ten assignees appearing on patents
2009 - 2018
2009
Nr Electric Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| apparatus for limiting current of circuit or breaking current, and control method thereof | 17 | 2013 |
| thyristor assembly radiator for dc converter valve | 16 | 2015 |
| relay protection method and device against lc parallel circuit detuning faults | 15 | 2014 |
| direct-current transmission inversion-side frequency control method | 13 | 2014 |
| method and apparatus for controlling direct-current voltage | 12 | 2013 |
| unified power flow controller for double-circuit line | 12 | 2014 |
| converter valve fault warning method and system | 12 | 2016 |
| differential protection method for current source converter, and relay protection device | 12 | 2013 |
| frequency-conversion differential protection method for output transformer of static fre… 🛈 | 11 | 2012 |
| sub-module distributed control method, device and system | 11 | 2014 |