17 Utility Patents
#4,200 in Kanagawa
#45,393 in Japan
#211,202 in the World
Forward Citations = 246
Company Filing History:
Mitsubishi Chemical Corporation

Japan Polyethylene Corporation
4. 2 out of 54
Japan Polypropylene Corporation
5. 2 out of 499
Mitsubishi Kasei Corporation
where one patent can have more than one assignee
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