Inventor
PASSMORE KEVIN ROBIN
US16 patents
Patents
16 patentsUS11668160B1Jun 6, 2023
Subsurface safety valve with recoupling magnet assembly
HALLIBURTON ENERGY SERVICES INC5 citations74
US12163402B2Dec 10, 2024
Magnetically coupled subsurface safety valve
HALLIBURTON ENERGY SERVICES INC2 citations72
US11939837B2Mar 26, 2024
Electro-mechanical clutch for downhole tools
HALLIBURTON ENERGY SERVICES INC6 citations72
US11851961B1Dec 26, 2023
Magnetically coupled subsurface choke
HALLIBURTON ENERGY SERVICES INC3 citations72
US10900324B2Jan 26, 2021
Sliding sleeve having a flow inhibitor for well equalization
HALLIBURTON ENERGY SERVICES INC3 citations69
US12595828B2Apr 7, 2026
Dynamically engageable electromechanical brake
HALLIBURTON ENERGY SERVICES INC0 citations62
US12158186B2Dec 3, 2024
Dynamically engageable electromechanical brake
HALLIBURTON ENERGY SERVICES INC0 citations62
US12158056B2Dec 3, 2024
Electro-mechanical clutch employing a magnetized input shaft for downhole tools
HALLIBURTON ENERGY SERVICES INC1 citations59
US12024980B2Jul 2, 2024
Mechanical clutch for downhole tools
HALLIBURTON ENERGY SERVICES INC0 citations59
US11708739B2Jul 25, 2023
3D printed tool with integral stress concentration zone
HALLIBURTON ENERGY SERVICES INC0 citations59
US10954743B2Mar 23, 2021
3D printed tool with integral stress concentration zone
HALLIBURTON ENERGY SERVICES INC1 citations59
US12123282B2Oct 22, 2024
Electro-mechanical clutch for downhole tools
HALLIBURTON ENERGY SERVICES INC1 citations57
US12428922B2Sep 30, 2025
Magnetically coupled inflow control device
HALLIBURTON ENERGY SERVICES INC0 citations51
US11891866B2Feb 6, 2024
Dampening the actuation speed of a downhole tool
HALLIBURTON ENERGY SERVICES INC0 citations51
US10633952B2Apr 28, 2020
3D printed subsurface tool having a metal diaphragm
HALLIBURTON ENERGY SERVICES INC0 citations50
US12252958B2Mar 18, 2025
Electro-mechanical clutch employing a magnetized output coupler housing for downhole tools
HALLIBURTON ENERGY SERVICES INC0 citations49