NATUREWORKS LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 19101
 
 
 
C07D HETEROCYCLIC COMPOUNDS 15147
 
 
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 7131
 
 
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 573
 
 
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 594
 
 
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 4112
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 3122
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154
 
 
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 399
 
 
 
D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS324

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0066,708 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 MATERIALFeb 23, 15Mar 09, 17[C07C]
2017/0066,709 PROCESS FOR MAKING ESTERS OF 2-ACETOXYALKANOIC ACIDS USING AN ALPHA-HYDROXYALKANOIC ACID ESTER AND AN ACETATE ESTER AS STARTING MATERIALSFeb 23, 15Mar 09, 17[C07C]
2016/0305,045 Polylactide FibersJun 28, 16Oct 20, 16[C09K, D01F]
2015/0152,449 Lactate Production ProcessJun 10, 13Jun 04, 15[C07D, C07C, C12P]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9404032 Polylactide fibersDec 14, 12Aug 02, 16[E21B, C09K, A01G, D01F, C08L]
9290616 Solid-phase polymerization method for preparing high-molecular-weight aliphatic polyesterMay 28, 12Mar 22, 16[C08G]
9284403 Method to produce semi-crystalline polylactidesSep 11, 12Mar 15, 16[C08G]
9080008 Polylactic acid resin and method for producing sameJul 18, 12Jul 14, 15[C08G]
9045781 Process for the production of optically-active esters of lactic acid and lactyllactic acidJul 16, 12Jun 02, 15[C12P]
9045782 Process for the production of optically-active esters of lactic acid and lactyllactic acidJul 16, 12Jun 02, 15[C12P]
9045783 Process for the production of optically-active esters of lactic acid and lactyllactic acidJul 16, 12Jun 02, 15[C12P]
9035076 Recovery of lactic acid values from a meso-lactide streamSep 27, 13May 19, 15[C07D]
9023953 Process for production of poly(lactic acid)-type resin, and poly(lactic acid)-type prepolymerJun 27, 11May 05, 15[C08G]
8962791 Polylactic acid stereocomplex compositions and methods for making and using sameOct 24, 07Feb 24, 15[B29K, C08G, B29C, C08L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0216,334 Electrical Service DeviceABANNov 29, 06Aug 26, 10[H01R]
2007/0187,876 Injection stretch blow molding process using polylactide resinsABANJun 23, 05Aug 16, 07[B29C]
6740731 Degradation control of environmentally degradable disposable materialsExpiredFeb 12, 01May 25, 04[C08G, C08K]
6323307 Degradation control of environmentally degradable disposable materialsExpiredAug 16, 95Nov 27, 01[C08G, C08L]
6025458 Degradable polydioxaneone-based materialsExpiredJun 15, 98Feb 15, 00[C08G, C07D]
5639466 Method for packaging foodstuffsExpiredFeb 24, 95Jun 17, 97[A01N]
5252642 Degradable impact modified polyactic acidExpiredSep 06, 90Oct 12, 93[C08L]
5180765 Biodegradable packaging thermoplastics from lactidesExpiredSep 06, 90Jan 19, 93[C08K]
5138074 Continuous catalyzed vapor phase dimeric cyclic ester processExpiredJun 28, 90Aug 11, 92[C07D]
5117008 Solvent scrubbing recovery of lactide and other dimeric cyclic estersExpiredOct 23, 90May 26, 92[C07D]
5091544 Process for rapid conversion of oligomers to cyclic estersExpiredSep 21, 90Feb 25, 92[C07D]
5076983 Polyhydroxy acid filmsExpiredJul 16, 90Dec 31, 91[B29C]
5028667 Yttrium and rare earth compounds catalyzed lactone polymerizationExpiredSep 29, 89Jul 02, 91[C08G]

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