Inventor
HELMS LONNIE CARL
US58 patents
Patents
50 patentsUS11280157B2Mar 22, 2022
Multi-stage cementing tool
HALLIBURTON ENERGY SERVICES INC9 citations85
US10995583B1May 4, 2021
Buoyancy assist tool with debris barrier
HALLIBURTON ENERGY SERVICES INC9 citations84
US9169705B2Oct 27, 2015
Pressure relief-assisted packer
HALLIBURTON ENERGY SERVICES INC10 citations84
US10557329B2Feb 11, 2020
Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool with rotatable sleeve
HALLIBURTON ENERGY SERVICES INC13 citations83
US11377920B2Jul 5, 2022
Anchoring downhole tool housing and body to inner diameter of tubing string
HALLIBURTON ENERGY SERVICES INC8 citations82
US11293253B2Apr 5, 2022
Dual sub-surface release plug with bypass for small diameter liners
HALLIBURTON ENERGY SERVICES INC8 citations79
US11293252B2Apr 5, 2022
Fluid barriers for dissolvable plugs
HALLIBURTON ENERGY SERVICES INC3 citations73
US11261703B1Mar 1, 2022
Dual valves for reverse cementing operations
HALLIBURTON ENERGY SERVICES INC4 citations73
US11359454B2Jun 14, 2022
Buoyancy assist tool with annular cavity and piston
HALLIBURTON ENERGY SERVICES INC4 citations72
US11230905B2Jan 25, 2022
Buoyancy assist tool with waffle debris barrier
HALLIBURTON ENERGY SERVICES INC4 citations72
US11174701B2Nov 16, 2021
Wellbore remedial operations with no-heat liquid solder
HALLIBURTON ENERGY SERVICES INC2 citations72
US10989013B1Apr 27, 2021
Buoyancy assist tool with center diaphragm debris barrier
HALLIBURTON ENERGY SERVICES INC5 citations72
US11346171B2May 31, 2022
Downhole apparatus
HALLIBURTON ENERGY SERVICES INC2 citations71
US11293261B2Apr 5, 2022
Buoyancy assist tool
HALLIBURTON ENERGY SERVICES INC2 citations71
US11187072B2Nov 30, 2021
Fiber deployment system and communication
HALLIBURTON ENERGY SERVICES INC3 citations71
US11105166B2Aug 31, 2021
Buoyancy assist tool with floating piston
HALLIBURTON ENERGY SERVICES INC5 citations71
US11274519B1Mar 15, 2022
Reverse cementing tool
HALLIBURTON ENERGY SERVICES INC5 citations70
US11142994B2Oct 12, 2021
Buoyancy assist tool with annular cavity and piston
HALLIBURTON ENERGY SERVICES INC3 citations70
US11566489B2Jan 31, 2023
Stage cementer packer
HALLIBURTON ENERGY SERVICES INC2 citations68
US11199071B2Dec 14, 2021
Full bore buoyancy assisted casing system
HALLIBURTON ENERGY SERVICES INC3 citations68
US11976533B1May 7, 2024
Externally threadless float equipment for cementing operations
HALLIBURTON ENERGY SERVICES INC2 citations67
US11391119B2Jul 19, 2022
Differential fill valve with collet sleeve
HALLIBURTON ENERGY SERVICES INC2 citations67
US11982153B2May 14, 2024
Managed pressure reverse cementing and valve closure
HALLIBURTON ENERGY SERVICES INC0 citations62
US11965397B2Apr 23, 2024
Operating sleeve
HALLIBURTON ENERGY SERVICES INC0 citations62
US11661812B2May 30, 2023
Fluid barriers for dissolvable plugs
HALLIBURTON ENERGY SERVICES INC0 citations62
US11180987B2Nov 23, 2021
Conductive pathways within a wellbore using no-heat liquid solder
HALLIBURTON ENERGY SERVICES INC0 citations62
US12326079B2Jun 10, 2025
Induction loop cementing progress detection
HALLIBURTON ENERGY SERVICES INC0 citations61
US11668183B2Jun 6, 2023
Fiber deployment system and communication
HALLIBURTON ENERGY SERVICES INC0 citations61
US11519258B2Dec 6, 2022
Pressure testing casing string during reverse cementing operations
HALLIBURTON ENERGY SERVICES INC0 citations61
US9476273B2Oct 25, 2016
Pressure activated down hole systems and methods
HALLIBURTON ENERGY SERVICES INC2 citations61
US12060763B2Aug 13, 2024
Cementing apparatus for reverse cementing
HALLIBURTON ENERGY SERVICES INC0 citations60
US11767728B2Sep 26, 2023
Cementing plug formed with high pressure seal
HALLIBURTON ENERGY SERVICES INC1 citations60
US11746618B2Sep 5, 2023
Cementing apparatus for reverse cementing
HALLIBURTON ENERGY SERVICES INC0 citations60
US11466520B2Oct 11, 2022
Systems and methods for indicating completion of a reverse cementing operation
HALLIBURTON ENERGY SERVICES INC0 citations60
US11448038B2Sep 20, 2022
Reverse cementing valve system and method employing a double flapper valve with sliding sleeve and drillable nose
HALLIBURTON ENERGY SERVICES INC0 citations60
US12448559B1Oct 21, 2025
Puddle job with delayed setting of resin via a polymerization reaction with an activator
HALLIBURTON ENERGY SERVICES INC0 citations59
US11384613B1Jul 12, 2022
Wellbore dart with separable and expandable tool activator
HALLIBURTON ENERGY SERVICES INC1 citations59
US11072990B2Jul 27, 2021
Buoyancy assist tool with overlapping membranes
HALLIBURTON ENERGY SERVICES INC1 citations59
US12270281B2Apr 8, 2025
Wiper dart having a bi-diameter wiper cup with protruding ring
HALLIBURTON ENERGY SERVICES INC0 citations57
US11873697B2Jan 16, 2024
Casing equipment for pulsed power drilling
HALLIBURTON ENERGY SERVICES INC0 citations57
US12460507B2Nov 4, 2025
Apparatus and method of reducing surge when running casing
HALLIBURTON ENERGY SERVICES INC0 citations55
US11898416B2Feb 13, 2024
Shearable drive pin assembly
HALLIBURTON ENERGY SERVICES INC0 citations55
US12516586B2Jan 6, 2026
Cement head flow diverter for tethered cement plug deployment
HALLIBURTON ENERGY SERVICES INC0 citations53
US11933164B2Mar 19, 2024
Fluid particulate concentrator for enhanced sensing in a wellbore fluid
HALLIBURTON ENERGY SERVICES INC0 citations52
US9988872B2Jun 5, 2018
Pressure relief-assisted packer
HALLIBURTON ENERGY SERVICES INC0 citations52
US12252959B1Mar 18, 2025
Wiper dart having a bi-diameter wiper cup
HALLIBURTON ENERGY SERVICES INC0 citations51
US11519242B2Dec 6, 2022
Telescopic stage cementer packer
HALLIBURTON ENERGY SERVICES INC0 citations50
US11499395B2Nov 15, 2022
Flapper disk for buoyancy assisted casing equipment
HALLIBURTON ENERGY SERVICES INC0 citations50
US11008838B2May 18, 2021
Switchable crossover tool with hydraulic transmission
HALLIBURTON ENERGY SERVICES INC0 citations50
US10914133B2Feb 9, 2021
Switchable crossover tool with rotatable chamber
HALLIBURTON ENERGY SERVICES INC0 citations50
Showing the top 50 of 58 patents by PatentIndex Score.