5 Utility Patents
#392 in Chengdu
#27,091 in China
#826,892 in the World
Forward Citations = 0
Company Filing History:
Southwest Petroleum University
Sichuan University
Haohan Well Completion & Logging Science and Technology Limited Company
4. 1 out of 1
Haohan Well Completionglogging Science and Technology Limited Company
where one patent can have more than one assignee
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