4. Wells
  5. Processes
  6. Cementing, plugging or consolidating

Keith T. Lutgring

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Anti-rotation device for use with well tools

Wells – Conduit wall or specific conduit end structure
Reexamination Certificate

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Flow control apparatus and method

Wells – Processes – Placing or shifting well part
Reissue Patent

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Flow control apparatus and method

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Load ring for lifting by elevator, of casing having no upset

Handling: hand and hoist-line implements – Grapple – Band type
Reexamination Certificate

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Load ring for lifting by elevator, of casing having no upset

Handling: hand and hoist-line implements – Grapple – Band type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1079641

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