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Downhole drilling apparatus
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Patent number 6,585,040
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Issue date Jul 1, 2003
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Halliburton Energy Services, Inc.
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John Hanton
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E21 - EARTH DRILLING MINING
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Downhole drilling apparatus
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Patent number 6,550,550
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Issue date Apr 22, 2003
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Halliburton Energy Services, Inc.
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John Hanton
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E21 - EARTH DRILLING MINING
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Field development methods
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Patent number 6,488,087
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Issue date Dec 3, 2002
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Halliburton Energy Services, Inc.
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James R. Longbottom
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E21 - EARTH DRILLING MINING
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Downhole drilling apparatus
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Patent number 6,374,924
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Issue date Apr 23, 2002
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Halliburton Energy Services, Inc.
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John Hanton
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E21 - EARTH DRILLING MINING
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Expandable wellbore junction
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Patent number 6,189,616
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Issue date Feb 20, 2001
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Halliburton Energy Services, Inc.
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John C. Gano
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E21 - EARTH DRILLING MINING
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Expandable wellbore junction
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Patent number 6,135,208
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Issue date Oct 24, 2000
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Halliburton Energy Services, Inc.
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John C. Gano
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E21 - EARTH DRILLING MINING
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