51 Utility Patents
#62 in Chiba
#7,447 in Japan
#37,123 in the World
Forward Citations = 370
Company Filing History:
Sumitomo Chemical Company, Limited

Marubishi Oil Chemical Co., Ltd.
4. 1 out of 13
Sumitomo Dow Limited
5. 1 out of 929
Sumitomo Metal Industries, Inc.
where one patent can have more than one assignee
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