6 Utility Patents
#865 in Sakai
#138,241 in Japan
#684,067 in the World
Forward Citations = 128
Company Filing History:
Sakai Chemical Industry Co., Ltd.

Mitsubishi Petrochemical Company Limited
4. 1 out of 830,757 patents
Other
5. 1 out of 102

where one patent can have more than one assignee
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