US Patent 7967299 Body to bonnet seal on a blowout preventer
Patent 7967299 was granted and assigned to National Oilwell Varco on June, 2011 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
July 16, 2009
Date of Patent
June 28, 2011
Patent Application Number
12504183
Patent Inventor Names
Perry Lee McClanahan
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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