6 Utility Patents
#3,516 in Shanghai
#22,310 in China
#695,270 in the World
Forward Citations = 0
Company Filing History:
China University of Petroleum
Shanghai Supezet Engineering Technology Co., Ltd.
Hanyi Shenfei New Materials Co., Ltd.
4. 2 out of 12,787

5. 1 out of 1,870

where one patent can have more than one assignee
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