How many patents does
East Japan Railway Company have?
patents
947
families
571
granted
233
applications
714
JP
766
EP
45
WO
37
US
32
CN
21
KR
12
GB
10
RoW
24
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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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East Japan Railway Company
Top ten assignees appearing on patents
East Japan Railway Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| railroad vehicle brake disc | 17 | 2015 |
| foreign matter removing apparatus at track branch, and nozzle used in the same | 16 | 2011 |
| foreign matter removal device for track branching section | 13 | 2011 |
| railway platform door device | 11 | 2009 |
| control device for railway power conditioner and control system for railway power condit… 🛈 | 10 | 2012 |
| cement admixture, and cement composition and concrete containing the cement admixture | 9 | 2008 |
| acoustic insulation device for mobile vehicle | 8 | 2011 |
| power generation member, power generation device using same, and power generation system | 7 | 2008 |
| railroad vehicle | 7 | 2011 |
| assembly jig of contact plate assembly | 7 | 2010 |