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List of NatureWorks patents

Patents where

Current Assignee

Name

NatureWorks

Name	Description	Patent Applicant	Current Assignee	Patent Jurisdiction	Patent Number	Date of Patent
‌ US Patent 7232664 Fermentation process using specific oxygen uptake rates as a process control	Patent 7232664 was granted and assigned to NatureWorks on June, 2007 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	7232664	June 19, 2007
‌ US Patent 7566753 Branching polylactide by reacting OH or COOH polylactide with epoxide acrylate (co)polymer	Patent 7566753 was granted and assigned to NatureWorks on July, 2009 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	7566753	July 28, 2009
‌ US Patent 8962791 Polylactic acid stereocomplex compositions and methods for making and using same	Patent 8962791 was granted and assigned to NatureWorks on February, 2015 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8962791	February 24, 2015
‌ US Patent 7670545 Method for producing semicrystalline polylactic acid articles	Patent 7670545 was granted and assigned to NatureWorks on March, 2010 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	7670545	March 2, 2010
‌ US Patent 8377353 Process of making conjugate fibers	Patent 8377353 was granted and assigned to NatureWorks on February, 2013 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8377353	February 19, 2013
‌ US Patent 8013031 Extruded polylactide foams blown with carbon dioxide	Patent 8013031 was granted and assigned to NatureWorks on September, 2011 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8013031	September 6, 2011
‌ US Patent 10414714 Process for making esters of 2-acetoxyalkanoic acids using a 3,6-dialkyl-1,4-dioxane-2,5-dione or poly-(alpha-hydroxyalkanoic acid) as a starting material	Patent 10414714 was granted and assigned to NatureWorks on September, 2019 by the United States Patent and Trademark Office.	NatureWorks	NatureWorks	United States Patent and Trademark Office	10414714	September 17, 2019
‌ US Patent 10385002 Process for making esters of 2-acetoxyalkanoic acids using a 3,6-dialkyl-1,4-dioxane-2,5-dione or poly-(alpha-hydroxyalkanoic acid) as a starting material	Patent 10385002 was granted and assigned to NatureWorks on August, 2019 by the United States Patent and Trademark Office.	NatureWorks	NatureWorks	United States Patent and Trademark Office	10385002	August 20, 2019
‌ US Patent 8722754 Extruded foams made with polylactides that have high molecular weights and high intrinsic viscosities	Patent 8722754 was granted and assigned to NatureWorks on May, 2014 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8722754	May 13, 2014
‌ US Patent 9404032 Polylactide fibers	Patent 9404032 was granted and assigned to NatureWorks on August, 2016 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	9404032	August 2, 2016
‌ US Patent 8183321 Impact modified polylactide resins	Patent 8183321 was granted and assigned to NatureWorks on May, 2012 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8183321	May 22, 2012
‌ US Patent 8182725 Methods for making polylactic acid stereocomplex fibers	Patent 8182725 was granted and assigned to NatureWorks on May, 2012 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8182725	May 22, 2012
‌ US Patent 9035076 Recovery of lactic acid values from a meso-lactide stream	Patent 9035076 was granted and assigned to NatureWorks on May, 2015 by the United States Patent and Trademark Office.	NatureWorks	NatureWorks	United States Patent and Trademark Office	9035076	May 19, 2015
‌ US Patent 10208405 Polylactide fibers	Patent 10208405 was granted and assigned to NatureWorks on February, 2019 by the United States Patent and Trademark Office.	NatureWorks	NatureWorks	United States Patent and Trademark Office	10208405	February 19, 2019
‌ US Patent 8114939 Method for stabilizing polymers containing repeating lactic acid units, and stabilized polymers so made	Patent 8114939 was granted and assigned to NatureWorks on February, 2012 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8114939	February 14, 2012
‌ US Patent 10294188 Process for making esters of 2-acetoxyalkanoic acids using an α-hydroxyalkanoic acid ester and an acetate ester as starting materials	Patent 10294188 was granted and assigned to NatureWorks on May, 2019 by the United States Patent and Trademark Office.	NatureWorks	NatureWorks	United States Patent and Trademark Office	10294188	May 21, 2019
‌ US Patent 8674056 Methods for producing lactide with recycle of meso-lactide	Patent 8674056 was granted and assigned to NatureWorks on March, 2014 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8674056	March 18, 2014
‌ US Patent 8268954 Method for making copolymers of lactide and a 1:4-3:6 dianhydrohexitol	Patent 8268954 was granted and assigned to NatureWorks on September, 2012 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	8268954	September 18, 2012
‌ US Patent 8552209 Recovery of lactic acid values from a meso-lactide stream			NatureWorks	United States Patent and Trademark Office	8552209	October 8, 2013
‌ US Patent 7015302 Copolymers of monocyclic esters and carbonates and methods for making same	Patent 7015302 was granted and assigned to NatureWorks on March, 2006 by the United States Patent and Trademark Office.		NatureWorks	United States Patent and Trademark Office	7015302	March 21, 2006
‌ US Patent 11787932 Polylactic resin compositions for paperboard coating and paperboard coating processes using the compositions	Patent 11787932 was granted and assigned to NatureWorks on October, 2023 by the United States Patent and Trademark Office.	NatureWorks	NatureWorks	United States Patent and Trademark Office	11787932	October 17, 2023

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