How many patents does
China Railway Fifth Survey And Design Institute Group Company have?
patents
222
families
191
granted
31
applications
191
CN
222
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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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China Railway Fifth Survey And Design Institute Group Company
Top ten assignees appearing on patents
2009 - 2018
2018
China Railway Fifth Survey And Design Institute Group Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method for constructing small-radius curve ballastless track | 2 | 2014 |
| foaming agent for low temperature-resistant soil pressure balance shield, and preparatio… 🛈 | 2 | 2015 |
| instrument for detecting dense state of existing roadbed | 2 | 2012 |
| buffering and energy dissipation device for slope protection | 2 | 2015 |
| special demonstration system of experiment of liquefaction of sand | 2 | 2014 |
| dynamic monitor for ballast bed and method | 2 | 2012 |
| lever-type bearing-ratio automatic tester | 2 | 2012 |
| set bearing platform foundations and construction method thereof | 2 | 2012 |
| machining method for swivel spherical hinge used for bridge swivel construction | 2 | 2014 |
| formation and construction set for continuous open-cut tunnel | 2 | 2015 |