How many patents does
Nippon Signal Co Ltd have?
patents
1,074
families
557
granted
318
applications
756
JP
800
CN
52
KR
49
EP
41
US
30
WO
27
RoW
75
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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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patent families
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Nippon Signal Co Ltd
Top ten assignees appearing on patents
Nippon Signal Co Ltd
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| train control device | 19 | 2012 |
| train control system | 18 | 2011 |
| wireless communication network system | 17 | 2011 |
| train control system | 17 | 2011 |
| train control system | 16 | 2011 |
| wireless communication network system synchronization method | 16 | 2011 |
| on-vehicle device for train control system | 16 | 2011 |
| train control system | 15 | 2011 |
| train control apparatus | 14 | 2012 |
| train guide broadcast system | 14 | 2011 |