How many patents does
Csr Nanjing Puzhen Company have?
patents
864
families
688
granted
166
applications
698
CN
851
WO
9
US
2
RoW
2
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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 Nanjing Puzhen Company
Top ten assignees appearing on patents
2018
Csr Nanjing Puzhen Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| flexible direct drive bogie | 7 | 2012 |
| installation base of low-floor tramcar hinge mechanisms | 3 | 2015 |
| motor train unit ato automatic driving control circuit | 3 | 2015 |
| braking-instruction converting control circuit of motor train unit | 3 | 2015 |
| car track structure in railway passenger train | 2 | 2014 |
| low-floor tramcar roof and side wall connection structure | 2 | 2014 |
| low-floor tramcar roof and side wall connecting and installing process | 2 | 2014 |
| rail vehicle roof and side wall connecting structure | 2 | 2014 |
| train traction brake instruction control method in train controlling and monitoring syst… 🛈 | 2 | 2012 |
| multi-functional door column for rail vehicles | 2 | 2012 |