6 Utility Patents
#268 in Zhejiang
#22,249 in China
#694,683 in the World
Forward Citations = 13
Company Filing History:
China Petroleum & Chemical Corporation

Sinopec Engineering Incorporation
4. 1 out of 832,492 patents
Other
5. 1 out of 1
Zhejieng University
where one patent can have more than one assignee
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