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Artificial lift with additional gas assist
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Patent number 7,717,182
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Issue date May 18, 2010
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Weatherford/Lamb, Inc.
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Bryan V. Butler
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Hydraulic multiphase pump
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Patent number 7,175,394
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Issue date Feb 13, 2007
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Weatherford/Lamb, Inc.
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Bryan Virge Butler
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Artificial lift with additional gas assist
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Patent number 7,063,161
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Issue date Jun 20, 2006
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Weatherford/Lamb, Inc.
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Bryan V. Butler
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Hydraulic multiphase pump
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Patent number 6,592,334
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Issue date Jul 15, 2003
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Weatherford/Lamb, Inc.
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Bryan Virge Butler
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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