Assignee

DEEP VISION LLP

US·1 granted patent·103 citations·filing 2002–2002

Technology mixB63B1 E21B1

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0190US6648081B2Subsea wellbore drilling system for reducing bottom hole pressureDEEP VISION LLP·Filed 2002·Granted Nov 18, 2003·103 cites·72 claims

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