How many patents does
Nok Corporation have?
patents
5,186
families
1,586
granted
1,213
applications
3,973
JP
1,737
EP
939
US
798
CN
745
WO
505
KR
231
GB
8
RoW
223
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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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read summary of their published patent
the following tables are just extracts from the report
the company report contains more information
Nok Corporation
Top ten assignees appearing on patents
2009 - 2018
Nok Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| sealing device and sealing structure | 31 | 2012 |
| seal device | 17 | 2014 |
| plunger seal for pump | 16 | 2004 |
| oil seal | 16 | 2006 |
| acrylic rubber composition | 13 | 2006 |
| method of manufacturing seal part | 13 | 2008 |
| seal component manufacturing method and mold | 13 | 2009 |
| fuel cell sealing structure | 13 | 2008 |
| fuel cell sealing structure | 13 | 2009 |
| sealing structure using torsional damper and oil seal | 13 | 2014 |