4. Excavating
  5. Beneath a body of water
  6. Suction

William B. Kerfoot

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Apparatus and method for subsidence deepening

Excavating – Beneath a body of water – Suction
Patent

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Apparatus and methods for subsidence deepening

Excavating – Beneath a body of water – Suction
Reexamination Certificate

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Coated microbubbles for treating an aquifer or soil formations

Liquid purification or separation – Processes – Including geographic feature
Reexamination Certificate

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Coated microbubbles for treating an aquifer or soil formations

Compositions – Oxidative bleachant – oxidant containing – or generative – Plural oxidants
Reexamination Certificate

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Deep well sparging

Gas and liquid contact apparatus – Multiple gas
Reexamination Certificate

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Profile ID: LFUS-PAI-P-965352

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