20 Utility Patents
#17 in Yamaguchi
#36,538 in Japan
#168,710 in the World
Forward Citations = 178
Company Filing History:
Jx Nippon Oil & Energy Corporation
Nippon Oil Corporation
Nippon Petroleum Refining Company, Limited
4. 2 out of 386
5. 1 out of 793

where one patent can have more than one assignee
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