How many patents does
Tetsudo Sogo Gijutsu Kenkyusho have?
patents
1,768
families
1,316
granted
348
applications
1,420
JP
1,612
EP
39
US
25
CN
23
WO
18
KR
14
RoW
37
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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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Tetsudo Sogo Gijutsu Kenkyusho
Top ten assignees appearing on patents
Tetsudo Sogo Gijutsu Kenkyusho
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| brake lining for railway vehicles and disc brakes equipped with same | 14 | 2011 |
| caliper brake device for vehicle | 13 | 2011 |
| caliper brake device for vehicle | 13 | 2007 |
| brake disc and method for producing same | 12 | 2013 |
| vehicle body tilting device for railroad vehicle | 11 | 2007 |
| caliper brake device | 11 | 2009 |
| railroad car break system | 11 | 2013 |
| contact force measurement method and contact force measurement device | 10 | 2010 |
| superconducting cable, and device and method for cooling superconducting cable | 8 | 2011 |
| testing device and testing method | 8 | 2014 |