NatureWorks LLC
28Patents
24Active
28Granted
49Portfolio score
Filing activity: Nov 23, 2001 → May 25, 2020 · 12 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7566753B2 | Branching polylactide by reacting OH or COOH polylactide with epoxide acrylate (co)polymer | Emerging Cross-Sectional Technologies | 28 | Active |
| US7232664B2 | Fermentation process using specific oxygen uptake rates as a process control | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7670545B2 | Method for producing semicrystalline polylactic acid articles | Performing Operations; Transporting | 12 | Active |
| US7109010B2 | Methods and materials for the synthesis of organic products | Chemistry; Metallurgy | 10 | Expired |
| US7141410B2 | Methods and materials for the production of organic products in cells of Candida species | Chemistry; Metallurgy | 9 | Expired |
| US8182725B2 | Methods for making polylactic acid stereocomplex fibers | Textiles; Paper | 4 | Active |
| US8962791B2 | Polylactic acid stereocomplex compositions and methods for making and using same | Chemistry; Metallurgy | 4 | Active |
| US8013031B2 | Extruded polylactide foams blown with carbon dioxide | Chemistry; Metallurgy | 3 | Active |
| US8183321B2 | Impact modified polylactide resins | Chemistry; Metallurgy | 3 | Active |
| US8552209B2 | Recovery of lactic acid values from a meso-lactide stream | Chemistry; Metallurgy | 2 | Active |
| US10807344B2 | Polymer foam insulation structure having a facing of a multi-layer sheet that contains a heat resistant polymer layer and a polylactide resin layer | Chemistry; Metallurgy | 2 | Active |
| US8114939B2 | Method for stabilizing polymers containing repeating lactic acid units, and stabilized polymers so made | Chemistry; Metallurgy | 2 | Active |
| US8377353B2 | Process of making conjugate fibers | Emerging Cross-Sectional Technologies | 1 | Active |
| US8268954B2 | Method for making copolymers of lactide and a 1:4-3:6 dianhydrohexitol | Chemistry; Metallurgy | 1 | Active |
| US9035076B2 | Recovery of lactic acid values from a meso-lactide stream | Chemistry; Metallurgy | 1 | Active |
| US11566103B2 | Hyperbranched polylactide resin compositions | Chemistry; Metallurgy | 0 | Active |
| US11739190B2 | Process for forming polylactide expanded bead foam | Chemistry; Metallurgy | 0 | Active |
| US10414714B2 | 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 | Chemistry; Metallurgy | 0 | Active |
| US10208405B2 | Polylactide fibers | Fixed Constructions | 0 | Active |
| US7015302B2 | Copolymers of monocyclic esters and carbonates and methods for making same | Emerging Cross-Sectional Technologies | 0 | Expired |
| US10385002B2 | 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 | Chemistry; Metallurgy | 0 | Active |
| US11787932B2 | Polylactic resin compositions for paperboard coating and paperboard coating processes using the compositions | Chemistry; Metallurgy | 0 | Active |
| US9404032B2 | Polylactide fibers | Fixed Constructions | 0 | Active |
| US8722754B2 | Extruded foams made with polylactides that have high molecular weights and high intrinsic viscosities | Chemistry; Metallurgy | 0 | Active |
| US8674056B2 | Methods for producing lactide with recycle of meso-lactide | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.