4 Utility Patents
#511 in Chengdu
#33,387 in China
Forward Citations = 0
Company Filing History:
Southwest Petroleum University
China University of Geosciences (wuhan)
China University of Petroleum
4. 1 out of 1
Oil & Gas Survey Center, China Geological Survey
5. 1 out of 1
Sinopec Exploration Company
where one patent can have more than one assignee
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