How many patents does
Csr Qishuyan Institute Company have?
patents
986
families
767
granted
194
applications
792
CN
969
WO
15
US
1
RoW
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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Csr Qishuyan Institute Company
Top ten assignees appearing on patents
2009 - 2018
2018
Csr Qishuyan Institute Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| buffer device for rail transit vehicle | 6 | 2014 |
| carburized alloy steel, method for preparing same, and use thereof | 5 | 2014 |
| positioning clamping device for nonsymmetrical rails | 4 | 2013 |
| braking device for vehicle | 4 | 2015 |
| high-silicon-molybdenum ductile iron material and preparation method thereof | 4 | 2012 |
| high-abrasion-resistance air-cooled medium carbon si-mn system steel | 3 | 2014 |
| air hose connector for tight-lock coupler | 3 | 2014 |
| train brake lining with adjuster | 3 | 2010 |
| non-full-symmetry involute gear and machining method thereof | 3 | 2015 |
| direct current welder | 3 | 2011 |