4. Wells
  5. Processes
  6. Perforating, weakening, bending or separating pipe at an...

Freeman L. Hill

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Downhole hydraulic pipe cutter

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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Downhole hydraulic pipe cutter

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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Method and apparatus for subterranean fracturing

Wells – Processes – With explosion or breaking container to implode
Reexamination Certificate

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Wireless perforating gun initiation

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Independent firing of plural charges
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2408115

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