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Sealing tubing
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Patent number 7,387,168
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Issue date Jun 17, 2008
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Weatherford/Lamb, Inc.
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Peter Ellington
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Sealing expandable tubing
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Patent number 7,380,839
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Issue date Jun 3, 2008
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Weatherford/Lamb, Inc.
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Peter Ellington
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E21 - EARTH DRILLING MINING
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Expandable coupling
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Patent number 7,107,663
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Issue date Sep 19, 2006
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Weatherford/Lamb, Inc.
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Peter Ellington
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Expandable connection
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Patent number 7,017,950
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Issue date Mar 28, 2006
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Weatherford/Lamb, Inc.
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Iain Cameron Macaulay
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...