US Patent 8152999 Membrane cascade-based separation

Patent 8152999 was granted and assigned to Wisconsin Alumni Research Foundation on April, 2012 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Wisconsin Alumni Research Foundation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8152999

Date of Patent

April 10, 2012

Patent Application Number

11557003

Date Filed

November 6, 2006

Patent Citations Received

‌

US Patent 11667549 Osmotic methods and systems involving energy recovery

Patent Primary Examiner

‌

Ana Fortuna

Patent abstract

The present invention provides counter flow cascade separation systems useful to separate solute/solute pairs present in a solvent. The separation systems include a series of interconnected stages with each stage comprising a diafilter preferentially permeable for one solute. Solute/solute pairs are preferentially separated by the diafilter into permeate and retentate flows. Stages are combined to form separation systems capable of operation approaching an ideal cascade.

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