4. Wells
  5. With electrical means
  6. Valve

Johannis Josephus Den Boer

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Downhole device for controlling fluid flow in a well

Wells – With electrical means – Valve
Reexamination Certificate

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EMAT weld inspection

Metal fusion bonding – Process – With measuring – testing – indicating – inspecting – or...
Reexamination Certificate

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Forge welding process

Electric heating – Metal heating – For bonding with pressure
Reexamination Certificate

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Gel release device

Wells – With electrical means – Indicating
Reexamination Certificate

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Joining expandable tubulars

Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2716578

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