LandOfFree - US Patents - Listing for Liquid purification or separation

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Biological removal of phosphorus and nitrogen from wastewater us

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological semi-fluid processing assembly

Liquid purification or separation – Processes – Separating

Patent

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Biological sewage treatment apparatus of the rotary disc type

Liquid purification or separation – With gas-liquid surface contact means

Patent

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Biological sewage treatment plant

Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units

Patent

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Biological sewage treatment plant

Liquid purification or separation – With means to add treating material – Spaced along flow path

Patent

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Biological sludge-energy recycling method

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological solubilization process for converting contaminated sl

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological system for degrading nitroaromatics in water and...

Liquid purification or separation – Processes – Treatment by living organism

Reexamination Certificate

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Biological treating systems

Liquid purification or separation – With gas-liquid surface contact means – With separator

Patent

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Biological treatment and filtration system equipment

Liquid purification or separation – With gas-liquid surface contact means – With separator

Reexamination Certificate

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Biological treatment method for water

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of a formaldehyde-containing waste water co

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of combined ink and starch wastewater for u

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of materials

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of sewage

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of spent caustics

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of waste water

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of wastewater

Liquid purification or separation – Processes – Treatment by living organism

Patent

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Biological treatment of wastewater

Liquid purification or separation – Processes – Treatment by living organism

Reexamination Certificate

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Biological treatment of wastewater

Liquid purification or separation – Processes – Treatment by living organism

Patent

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