Patents/Inventors

Zanqing Wei

HebeiCN5 patents

6 Patents

US122351942025
Coring Device
China National Offshore Oil Corporation
0 cites
US120251592024
Hydraulic Power System for Downhole Device and Downhole Device
China National Offshore Oil Corporation
0 cites
US120128162024
Core Detection Device of Coring Instrument and Spacer Insertion Device
China Oilfield Services Limited
0 cites
US119058292024
Integrated Logging Instrument for Coring and Sampling
China National Offshore Oil Corporation
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