How many patents does
Sumitomo Seika Chemicals Company have?
patents
2,872
families
370
granted
714
applications
2,158
EP
496
JP
446
CN
360
US
356
KR
300
WO
278
RoW
636
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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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Sumitomo Seika Chemicals Company
Top ten assignees appearing on patents
2009 - 2018
Sumitomo Seika Chemicals Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method for producing pseudopolyrotaxane | 43 | 2010 |
| production method for powdered hydrophilic modified polyrotaxane | 41 | 2011 |
| water absorbing resin particles, method for manufacturing water absorbing resin particle… 🛈 | 30 | 2011 |
| water-absorbent sheet composite | 24 | 2011 |
| method for producing water-absorbent resin | 21 | 2014 |
| water-absorbent resin and absorbent article | 19 | 2014 |
| water-absorbent resin and absorbent article | 19 | 2014 |
| oxide semiconductor layer and production method therefor, oxide semiconductor precursor,… 🛈 | 19 | 2013 |
| water absorbent resin and method for producing same | 18 | 2010 |
| water-absorbing resin manufacturing method, water-absorbing resin, water-absorbing agent… 🛈 | 18 | 2014 |