LandOfFree - US Patents - Listing for Earth boring, well treating, and oil field chemistry,Earth boring

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Anti-accretion additives for drilling fluids

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

Reexamination Certificate

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Anti-settling lubricity agent for water/oil dispersion compositi

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

Patent

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Aphron-containing aqueous well drilling and servicing fluids

Earth boring – well treating – and oil field chemistry – Earth boring – Contains intended gaseous phase at entry into wellbore

Reexamination Certificate

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Aphron-containing oil base fluids and method of drilling a well

Earth boring – well treating – and oil field chemistry – Earth boring – Contains intended gaseous phase at entry into wellbore

Patent

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Aphron-containing well drilling and servicing fluids

Earth boring – well treating – and oil field chemistry – Earth boring – Contains intended gaseous phase at entry into wellbore

Reexamination Certificate

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Application of muds containing scleroglucan to drilling large di

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

Patent

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Application of N,N-dialkylamides to control the formation of emu

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

Patent

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Aqueous based drilling fluid

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

Patent

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Aqueous based drilling fluid additive and composition

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

Patent

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Aqueous drilling muds fluidified by means of zirconium and alumi

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

Patent

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