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HYDRAULIC LOCK APPARATUS
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Publication number 20230407720
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Publication date Dec 21, 2023
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Welleng Science and Technology Ltd
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Peter Barnes MOYES
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E21 - EARTH DRILLING MINING
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HYDRAULIC INDEXING SYSTEM
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Publication date Jun 29, 2023
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SCHLUMBERGER TECHNOLOGY CORPORATION
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David Clayton
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E21 - EARTH DRILLING MINING
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CIRCULATION VALVE
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Publication date Sep 8, 2022
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Circulate Plus Limited
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Jonathan Peter BUCKLAND
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E21 - EARTH DRILLING MINING
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LOCKING BACKPRESSURE VALVE
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Publication number 20210372228
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Publication date Dec 2, 2021
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Baker Hughes Oilfield Operations LLC
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Larry Thomas Palmer
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E21 - EARTH DRILLING MINING
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LOCKING BACKPRESSURE VALVE
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Publication number 20210372233
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Publication date Dec 2, 2021
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Baker Hughes Oilfield Operations LLC
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Larry Thomas Palmer
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E21 - EARTH DRILLING MINING
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MULTI-PISTON ACTIVATION MECHANISM
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Publication number 20210324710
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Publication date Oct 21, 2021
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Halliburton Energy Services, Inc.
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Ryan David Mair
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E21 - EARTH DRILLING MINING
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SMART CIRCULATION SUB
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Publication number 20210180430
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Publication date Jun 17, 2021
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Saudi Arabian Oil Company
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Victor Carlos COSTA DE OLIVEIRA
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E21 - EARTH DRILLING MINING
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DOWNHOLE APPARATUS
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Publication number 20210047899
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Publication date Feb 18, 2021
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Weatherford U.K. Limited
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Derrick Docherty
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E21 - EARTH DRILLING MINING
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FLUID INJECTION VALVE
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Publication number 20200032917
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Publication date Jan 30, 2020
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BAKER HUGHES, A GE COMPANY, LLC
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Yuh Loh
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...