US patent granted April 1 to API Intellectual Property Holdings of Georgia on method for hydrolysis of cellulosic biomass using spent liquor from pulping process

Audrey Dixon

ALEXANDRIA, Virginia , April 4, 2014 (US Official News ) – United States Patent and Trademark Office has granted patent no. 8,685,167, on April 01, 2014, to API Intellectual Property Holdings, LLC (Georgia), titled as "Method for hydrolysis of biomass in pulping spent liquor"

Inventors: Retsina; Theodora (Atlanta, GA), Pylkkanen; Vesa (Atlanta, GA)

Assignee: API Intellectual Property Holdings, LLC (Atlanta, GA)

According to the abstract released by the U.S. Patent & Trademark Office: "A method for the hydrolysis of cellulosic materials using spent liquor. The spent liquor is derived from a pulping operation or is hydrolyzate from another cellulosic biomass process. The process can be implemented in a batch or semi continuous or continuous process. The hydrolyzate is fermented to a useful product and purified. Combustible biomass residues and chemicals are used to provide energy and chemical recovery."

The patent was filed on March 3, 2009 Application no. 12/397,284

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