How many patents does
Csr Yangtze Company have?
patents
846
families
630
granted
159
applications
687
CN
772
WO
22
US
20
EP
1
RoW
31
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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 Yangtze Company
Top ten assignees appearing on patents
2009 - 2018
Csr Yangtze Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| side wall structure of open wagon | 8 | 2014 |
| full side bearing bearing-type railway truck bogie | 8 | 2010 |
| empty-weight two-stage frictional lower side bearing for use in railway freight car bogie | 8 | 2010 |
| two-stage-rigidity combination elastic-member device | 7 | 2013 |
| link type secondary locking device, hopper car bottom door and hopper car | 7 | 2013 |
| inclined wedge vibration reduction device for railway freight car bogie | 7 | 2010 |
| railway freight car bogie | 7 | 2010 |
| secondary locking device, hopper car bottom door and hopper car | 7 | 2013 |
| engineering vehicle having ballast unloading device and ballast levelling device | 7 | 2014 |
| movable side wall and opening/closing mechanism for railroad boxcars | 6 | 2015 |