Barrier arrangement in wellhead assembly

Assignee

• Dril-Quip

Inventors

• Chris D. Bartlett (8 patents)
• Daniel J. McLaughlin (10 patents)
• Raymond A. Guillory (3 patents)
• Blake T. DeBerry (41 patents)
• Unknown
• Gregory Norwood (15 patents)
• David Scantlebury (10 patents)
• Andrew Mitchell (12 patents)
• Darren W. Mills (4 patents)

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