48 Utility and 14 Design Patents
#435 in Osaka
#8,303 in Japan
#40,923 in the World
rank by utility patentsForward Citations = 103
Company Filing History:

Sumitomo Chemical Company, Limited

4. 3 out of 55
Sumika Fine Chemicals, Co.,ltd.
5. 1 out of 297

where one patent can have more than one assignee
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