4. Earth boring, well treating, and oil field chemistry
  5. Earth boring
  6. Contains organic component

Christopher A. Sawdon

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Additive for increasing the density of a fluid and fluid...

Earth boring – well treating – and oil field chemistry – Earth boring – Contains inorganic component other than water or clay
Reexamination Certificate

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Additive for increasing the density of a fluid for casing...

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate

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Additive for increasing the density of a fluid for casing...

Earth boring – well treating – and oil field chemistry – Earth boring – Contains inorganic component other than water or clay
Reexamination Certificate

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Additive for increasing the density of an oil-based fluid...

Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Reexamination Certificate

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Additive for wellbore fluids

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1861632

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