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Variable torque flapper valve
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Patent number 11,274,523
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Issue date Mar 15, 2022
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Halliburton Energy Services, Inc.
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Abram Serda Galindo
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E21 - EARTH DRILLING MINING
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Flapper valve with beam spring
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Patent number 11,208,870
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Issue date Dec 28, 2021
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Halliburton Energy Services, Inc.
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Abram Serda Galindo
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E21 - EARTH DRILLING MINING
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3D printed flapper valve
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Patent number 10,612,345
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Issue date Apr 7, 2020
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Halliburton Energy Services, Inc.
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Russell Irving Bayh
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E21 - EARTH DRILLING MINING
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Fluid flow control device
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Patent number 10,113,370
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Issue date Oct 30, 2018
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Halliburton Energy Services, Inc.
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Jeremy Buc Slay
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E21 - EARTH DRILLING MINING
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Vibration based downhole power generator
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Patent number 6,504,258
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Issue date Jan 7, 2003
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Halliburton Energy Services, Inc.
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Roger Lynn Schultz
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Burner
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Patent number 4,655,706
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Issue date Apr 7, 1987
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Otis Engineering Corporation
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Russell I. Bayh
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Well production system
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Patent number 4,589,482
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Issue date May 20, 1986
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Otis Engineering Corporation
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Russell I. Bayh
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E21 - EARTH DRILLING MINING
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Well safety system
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Patent number 4,276,937
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Issue date Jul 7, 1981
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Otis Engineering Corporation
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Michael B. Calhoun
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E21 - EARTH DRILLING MINING