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

Guohua Cao

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Polyalkylated arylalkyl sulfonic acids and their salts

Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof
Reexamination Certificate

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Process for recovering residual oil employing alcohol ether...

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

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Profile ID: LFUS-PAI-P-3218107

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