How many patents does
Csr Qingdao Sifang Locomotive & Rolling Stock Company have?
patents
699
families
594
granted
96
applications
603
CN
689
WO
2
US
2
GB
2
RoW
4
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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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Csr Qingdao Sifang Locomotive & Rolling Stock Company
Top ten assignees appearing on patents
2009 - 2018
2018
| crrc qingdao sifang company | 1 |
Csr Qingdao Sifang Locomotive & Rolling Stock Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| high-voltage circuit for security transition from third rail power supply to intra-garag… 🛈 | 6 | 2014 |
| simulation system for current collecting surface of c-type contact rail | 6 | 2014 |
| railway vehicle chassis end portion anti-collision structure | 3 | 2013 |
| water pump control method and water pump control system in rail vehicle water supply sys… 🛈 | 2 | 2008 |
| narrow-gauge train bogie | 2 | 2013 |
| running-in test device for built-in axle boxes of rail vehicle | 2 | 2013 |
| noise source identifying and testing method for high speed train | 2 | 2013 |
| automatic water pump control device | 2 | 2013 |
| railway vehicle anti-creeping buffering structure | 2 | 2013 |
| framework of narrow-gauge train bogie | 2 | 2013 |