4. Optical waveguides
  5. Optical transmission cable
  6. Tightly confined

Joseph Varkey

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Active cable for wellbore heating and distributed...

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Reexamination Certificate

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Devices, systems and methods for equalizing pressure in a...

Wells – Processes – Freeing stuck object – grappling or fishing in well
Reexamination Certificate

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Dual conductor fiber optic cable

Optical waveguides – Optical transmission cable – With electrical conductor in the same cable
Reexamination Certificate

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Enhanced armor wires for wellbore cables

Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Reexamination Certificate

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Enhanced electrical cables

Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2193410

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