4. Chemistry of inorganic compounds
  5. Silicon or compound thereof
  6. Oxygen containing

Knut Henriksen

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Downhole inflow control device with shut-off feature

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate

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Downhole inflow control device with shut-off feature

Wells – Processes – Parallel string or multiple completion well
Reexamination Certificate

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Method and apparatus for production of amorphous silica from...

Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Reexamination Certificate

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Shot direction indicating device

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2698932

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