8 Utility Patents
#103 in Yamaguchi
#106,984 in Japan
#517,769 in the World
Forward Citations = 49
Company Filing History:
Nippon Petroleum Refining Company, Limited
Nippon Oil Corporation
Jx Nippon Oil & Energy Corporation
4. 1 out of 26
Koa Oil Company, Limited
where one patent can have more than one assignee
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