How many patents does
Sanwa Shutter Corporation have?
patents
389
families
285
granted
105
applications
284
JP
379
CN
6
WO
2
EP
2
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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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Sanwa Shutter Corporation
Top ten assignees appearing on patents
2018
Sanwa Shutter Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| shutter curtain lifting prevention structure in shutter device | 3 | 2003 |
| waterproof door | 3 | 2014 |
| waterproof door | 3 | 2013 |
| shutter with mechanical stopping device for evacuation | 2 | 2013 |
| shutter controller | 2 | 2012 |
| fireproof construction of window shutter | 2 | 2012 |
| brake release mechanism of shutter opening/closing machine | 2 | 2011 |
| gravitational lowering control system for fireproof and smokeproof shutter | 2 | 2011 |
| business support system | 2 | 2011 |
| crime prevention device of top-railed sliding door | 2 | 2011 |