How many patents does
China Railway Corporation have?
patents
880
families
736
granted
132
applications
748
CN
873
US
2
JP
2
EP
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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patent families
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China Railway Corporation
Top ten assignees appearing on patents
2009 - 2018
2009
China Railway Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| rolled iron core traction transformer | 8 | 2014 |
| frequency-division multiplexing capacity-doubled vehicle-mounted receiving device and tr… 🛈 | 3 | 2012 |
| ballastless track-structured waterproof vibration-reducing flexible protecting structure… 🛈 | 3 | 2016 |
| high-speed railway pantograph-catenary dynamics simulation method considering pantograph… 🛈 | 2 | 2015 |
| extension unit of independent train control vehicular system for intercity railways | 2 | 2016 |
| deformation monitoring apparatus and method of railway single-connecting-rod beam-end te… 🛈 | 2 | 2016 |
| oriented dust-exhaust dust-fall cover of high pneumatic dth (down-the-hole) drill | 2 | 2014 |
| testing device for track car non-contact electric energy transmission system and testing… 🛈 | 2 | 2015 |
| induction type wireless power supply system double-closed-loop constant output current c… 🛈 | 2 | 2015 |
| railway member displacement monitoring system and method | 2 | 2016 |