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Rotor bearing system
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Patent number 11,939,844
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Issue date Mar 26, 2024
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National-Oilwell Varco, L.P.
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Michael J. Guidry
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E21 - EARTH DRILLING MINING
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Progressing cavity pump/motor
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Patent number 8,905,733
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Issue date Dec 9, 2014
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Robbins & Myers Energy Systems L.P.
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Michael Guidry
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Progressing cavity pump/motor
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Patent number 8,672,656
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Issue date Mar 18, 2014
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Robbins & Myers Energy Systems L.P.
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Michael J. Guidry
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Closure for a vessel
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Patent number 8,430,260
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Issue date Apr 30, 2013
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Robbins & Myers Energy Systems L.P.
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Michael J. Guidry
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Progressing cavity pump or motor
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Patent number 7,407,372
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Issue date Aug 5, 2008
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Robbins & Myers Energy Systems L.P.
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Michael Guidry
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Downhole pumping system
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Patent number 6,695,060
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Issue date Feb 24, 2004
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Michael J. Guidry
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...