4. Pipe joints or couplings
  5. Particular interface
  6. Tapered

Doug Enderle

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Stress reduction groove for tubular connection

Pipe joints or couplings – With lubrication
Patent

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Two-step, differential diameter wedge threaded connector

Pipe joints or couplings – Particular interface – Tapered
Patent

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Two-step, low torque wedge thread for tubular connector

Pipe joints or couplings – Particular interface – Tapered
Reexamination Certificate

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Two-step, low torque wedge thread for tubular connector

Pipe joints or couplings – Particular interface – Tapered
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1841340

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