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Multiple entrance shunt

Wells – Conduit wall or specific conduit end structure – Plural – parallel – nonconcentric conduits
Reexamination Certificate

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No-turn tool

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Oil well tool

Wells – Conduit wall or specific conduit end structure – Plural – parallel – nonconcentric conduits
Patent

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Optical wet connect

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Reexamination Certificate

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Piping for the completion of a groundwater monitoring site

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Precision connector for well instrumentation

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Pressure activated bendable tool

Wells – Conduit wall or specific conduit end structure – Flexible tube or cable
Reexamination Certificate

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Production shoe

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Production tube with integrated hydraulic line

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Providing a conduit for an instrumentation line

Wells – Conduit wall or specific conduit end structure – Flexible tube or cable
Reexamination Certificate

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Reeled tubing gas lift mandrel

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Remote operated coil connector apparatus

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Reexamination Certificate

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Rotatable reciprocating collar for borehole casing

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Rotationally locked wear sleeve for through-tubing drilling...

Wells – Conduit wall or specific conduit end structure
Reexamination Certificate

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Seal receptacle assembly

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Sealing system for the interspace in the transition region...

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Reexamination Certificate

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Selectively locking locator

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Reexamination Certificate

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Shock absorber

Wells – Conduit wall or specific conduit end structure
Reexamination Certificate

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Shoe for used in the construction of oil and gas wells

Wells – Conduit wall or specific conduit end structure – Shoe detail
Patent

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Side entry apparatus and method

Wells – Conduit wall or specific conduit end structure – Side entry
Reexamination Certificate

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