4. Pipe joints or couplings
  5. Pipe to discreet nipple or sleeve to plate
  6. Nipple bolted to plate

Delbert E. Vanderford

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Adjustable sub-tension hanger

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate

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Full bore wellhead load shoulder and support ring

Wells – Above ground apparatus – Suspension means
Reexamination Certificate

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Method and apparatus for tensioning tubular members

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate

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Tubing hanger for temperature variations and extremes

Pipe joints or couplings – Pipe to discreet nipple or sleeve to plate – Nipple bolted to plate
Patent

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Profile ID: LFUS-PAI-P-1849795

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