4. Chemistry of hydrocarbon compounds
  5. Purification, separation, or recovery
  6. By addition of extraneous agent, e.g., solvent, etc.

William R. Parrish

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Method and apparatus for removing oxygen from natural gas

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Molecular oxygen or ozone component
Reexamination Certificate

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Olefin monomer separation process

Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent

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Profile ID: LFUS-PAI-P-1636761

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