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Directional core drilling system
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Patent number 12,123,265
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Issue date Oct 22, 2024
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INTERNATIONAL DIRECTIONAL SERVICES LLC
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Zach Thomas
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E21 - EARTH DRILLING MINING
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Tilting anti-rotation system
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Patent number 11,821,311
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Issue date Nov 21, 2023
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Halliburton Energy Services, Inc.
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Fraser A. Wheeler
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E21 - EARTH DRILLING MINING
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Pressure balanced seal assembly
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Patent number 11,365,584
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Issue date Jun 21, 2022
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Halliburton Energy Services, Inc.
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Fraser A. Wheeler
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Steering system for use with a drill string
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Patent number 11,365,586
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Issue date Jun 21, 2022
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Halliburton Energy Services, Inc.
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Larry DeLynn Chambers
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Push type rotary guide drilling system
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Patent number 11,306,540
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Issue date Apr 19, 2022
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INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
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Qingbo Liu
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E21 - EARTH DRILLING MINING
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Rotary steerable system
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Patent number 11,286,723
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Issue date Mar 29, 2022
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Halliburton Energy Services, Inc.
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Alan Campbell Bryson
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E21 - EARTH DRILLING MINING
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Directional drilling
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Patent number 11,268,325
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Issue date Mar 8, 2022
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Saudi Arabian Oil Company
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Atallah N. Alharbi
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E21 - EARTH DRILLING MINING
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Steering systems and methods
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Patent number 11,187,043
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Issue date Nov 30, 2021
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Schlumberger Technology Corporation
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Mauro Caresta
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E21 - EARTH DRILLING MINING