7 Utility Patents
#2,154 in Saitama 343-0827
#121,459 in Japan
#595,962 in the World
Forward Citations = 103
Company Filing History:
Maruzen Oil Co. Ltd.

Matsuyama Petrochemicals Inc.
4. 1 out of 40
Cosmo Research Institute
5. 1 out of 1
Cosmo Oil Company & Petroleum Energy Center
where one patent can have more than one assignee
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