UV Polymerization Method for Harvesting Microalgae Patent Application
Summary
USPTO published patent application US20260109936A1 on April 23, 2026, filed September 28, 2023 under Application No. 19117358. The invention by inventors Long D Nghiem, Peter Ralph, Luong N Nguyen, and Qiang Fu discloses a method for harvesting microalgae involving mixing monomers with a photoinitiator, water, and a deoxygenation system; exposing the mixture to UV light to form polymers; introducing the polymer solution to microalgae suspensions to produce flocculated microalgae; and harvesting the flocculated product. The application also covers a method for preparing and selecting polymeric flocculants and a related apparatus.
“The present invention relates to a method for harvesting microalgae, the method comprising (i) mixing one or more monomers, a photoinitiator, water and a deoxygenation system to form a mixture; (ii) exposing the mixture to UV light so as to form an aqueous solution of one or more polymers; (iii) introducing the aqueous solution of one or more polymers to a suspension comprising microalgae in an amount sufficient to produce flocculated microalgae; and (iv) harvesting the flocculated microalgae.”
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GovPing monitors USPTO Patent Applications - Biotech (C12N) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 227 changes logged to date.
What changed
USPTO published patent application US20260109936A1 covering a method for harvesting microalgae using UV polymerization. The invention involves mixing monomers, a photoinitiator, water, and a deoxygenation system; exposing the mixture to UV light to form aqueous polymers; introducing the polymer solution to microalgae suspensions to produce flocculation; and harvesting the flocculated microalgae.
For companies in biotechnology, biofuels, or aquaculture sectors developing algae harvesting technologies, this published application establishes prior art as of its September 28, 2023 filing date. Competitors should evaluate whether their existing methods or products may infringe claims in this application if it proceeds to grant.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
A METHOD FOR PREPARING AND SELECTING A POLYMERIC FLOCCULANT FOR USE IN HARVESTING MICROALGAE
Application US20260109936A1 Kind: A1 Apr 23, 2026
Inventors
Long D NGHIEM, Peter RALPH, Luong N NGUYEN, Qiang FU
Abstract
The present invention relates to a method for harvesting microalgae, the method comprising (i) mixing one or more monomers, a photoinitiator, water and a deoxygenation system to form a mixture; (ii) exposing the mixture to UV light so as to form an aqueous solution of one or more polymers; (iii) introducing the aqueous solution of one or more polymers to a suspension comprising microalgae in an amount sufficient to produce flocculated microalgae; and (iv) harvesting the flocculated microalgae. The present invention also relates to a method for preparing and selecting a polymeric flocculant for use in harvesting microalgae and a related apparatus.
CPC Classifications
C12N 1/12 C08F 20/34 C12M 47/02
Filing Date
2023-09-28
Application No.
19117358
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