4. Wells
  5. Processes
  6. Destroying or dissolving well part

Paul McElfresh

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Method for providing a temporary barrier in a flow pathway

Wells – Processes – Destroying or dissolving well part
Reexamination Certificate

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Shape memory polyurethane foam for downhole sand control...

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Including surface treatment of porous body
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3174679

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