Inventor
LIU QINGBO
CN19 patents
⚠️ This page may combine multiple inventors who share the name “LIU QINGBO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INST GEOLOGY & GEOPHYSICS CAS
10 patentsUS10815730B2Oct 27, 2020
Anti-rotating device of non-rotating sleeve and a rotary guiding device
INST GEOLOGY & GEOPHYSICS CAS17 citations84
US10837235B2Nov 17, 2020
Hybrid rotary guiding device
INST GEOLOGY & GEOPHYSICS CAS1 citations61
US11306539B2Apr 19, 2022
Executing mechanism for rotary guide device and rotary guide device
INST GEOLOGY & GEOPHYSICS CAS0 citations51
US11843204B2Dec 12, 2023
Signal processing circuit, contactless connector, signal processing method and storage medium
INST GEOLOGY & GEOPHYSICS CAS0 citations50
US11601164B2Mar 7, 2023
Contactless connector, signal processing method and storage medium
INST GEOLOGY & GEOPHYSICS CAS0 citations50
US11396777B1Jul 26, 2022
Rotary steering drilling apparatus
INST GEOLOGY & GEOPHYSICS CAS0 citations50
US11306540B2Apr 19, 2022
Push type rotary guide drilling system
INST GEOLOGY & GEOPHYSICS CAS0 citations50
US11021911B2Jun 1, 2021
Rotary guiding device based on radial driving force
INST GEOLOGY & GEOPHYSICS CAS0 citations50
US10693268B2Jun 23, 2020
Conductive slip ring for logging while drilling instrument
INST GEOLOGY & GEOPHYSICS CAS0 citations40
US10619478B2Apr 14, 2020
Device for power transmission and signal transfer between stator and rotor of screw drilling tool
INST GEOLOGY & GEOPHYSICS CAS0 citations40