Patents/Assignees

CHINA OILFIELD SERVICES LIMITED

7 patents in portfolio

US12359519utility2025
Coring and Sampling Integrated Sub and Downhole Instrument
0 cites
US12320942utility2025
Sensor Module, Sensor Assembly and Acoustic Logging Tool
0 cites
US12012816utility2024
Core Detection Device of Coring Instrument and Spacer Insertion Device
0 cites
US11927713utility2024
Method, Device and Medium for Acquiring Logging Parameters
0 cites
US11788405utility2023
Downhole Oil Level Detection Device
0 cites
US11739603utility2023
Core Detection Device of Coring Instrument
0 cites
US11624244utility2023
Connecting Structure for Drill Collar of Logging While Drilling Instrument and Drill Collar Sub Male and Female Joints
0 cites