4. Pipe joints or couplings
  5. Packed
  6. Screw thimble

Oil States Energy Services, Inc.

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Casing-engaging well tree isolation tool and method of use

Wells – Processes – Assembling well part
Reexamination Certificate

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Drilling flange and independent screwed wellhead with...

Wells – Above ground apparatus – With assembly or disassembly means
Reexamination Certificate

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Hybrid wellhead system and method of use

Wells – Processes – Assembling well part
Reexamination Certificate

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Metal ring gasket for a threaded union

Pipe joints or couplings – Packed – Screw thimble
Reexamination Certificate

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