8 Utility Patents
#162 in Zhejiang
#16,394 in China
#518,894 in the World
Forward Citations = 13
Company Filing History:
China Petroleum & Chemical Corporation

Central Iron and Steel Research Institute
4. 2 out of 9
Sinopec Engineering Incorporation
5. 1 out of 832,492 patents
Other
where one patent can have more than one assignee
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