12 Utility Patents
#1,187 in Saitama 343-0827
#69,572 in Japan
#325,846 in the World
Forward Citations = 223
Company Filing History:
Nippon Petrochemicals Company, Limited

Other
4. 3 out of 14
Polymer Processing Research Inst., Ltd.
5. 1 out of 1
Polymer Processing Research Instr., Ltd.
where one patent can have more than one assignee
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