How many patents does
Tokyo Gas Company have?
patents
1,317
families
872
granted
292
applications
1,025
JP
1,100
EP
51
US
45
WO
29
CN
24
KR
15
RoW
53
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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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the following tables are just extracts from the report
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Tokyo Gas Company
Top ten assignees appearing on patents
2009 - 2018
2018
| tokyo gas company | 17 |
| omron corporation | 3 |
| sankoh company | 2 |
| hitachi metals | 2 |
Tokyo Gas Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| retention device for retained substance and retention method | 14 | 2011 |
| cylindrical steam reformer | 14 | 2008 |
| storing device for stored substance and method for storing stored substance | 14 | 2008 |
| pipe joint | 14 | 2009 |
| device and method for sequestering a substance | 14 | 2009 |
| antibacterial glass mixture | 11 | 2010 |
| diagnostic agents for pancreatic exocrine function | 8 | 1998 |
| gas separation device and gas separation method | 8 | 2012 |
| gas separation device | 8 | 2012 |
| horizontally-striped solid-oxide fuel battery cell stack and fuel battery | 8 | 2007 |