Patents/Inventors

Shiwei Zong

HebeiCN2 patents

3 Patents

US120128162024
Core Detection Device of Coring Instrument and Spacer Insertion Device
China Oilfield Services Limited
0 cites
US117884052023
Downhole Oil Level Detection Device
China Oilfield Services Limited
0 cites
US117396032023
Core Detection Device of Coring Instrument
China Oilfield Services Limited
0 cites