NATUREWORKS LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C07D HETEROCYCLIC COMPOUNDS 14135
 
 
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1488
 
 
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 550
 
 
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 4115
 
 
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 4100
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 391
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3145
 
 
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 384
 
 
 
D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS320
 
 
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS225

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0087,799 METHOD TO PRODUCE SEMI-CRYSTALLINE POLYLACTIDESSep 11, 12Mar 26, 15[C08G]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,035,076 Recovery of lactic acid values from a meso-lactide streamSep 27, 13May 19, 15[C07D]
8,962,791 Polylactic acid stereocomplex compositions and methods for making and using sameOct 24, 07Feb 24, 15[B29K, C08G, B29C, C08L]
8,722,754 Extruded foams made with polylactides that have high molecular weights and high intrinsic viscositiesApr 24, 09May 13, 14[C08J]
8,674,056 Methods for producing lactide with recycle of meso-lactideMar 12, 10Mar 18, 14[C08G]
8,552,209 Recovery of lactic acid values from a meso-lactide streamMar 12, 10Oct 08, 13[C07D]
8,377,353 Process of making conjugate fibersSep 26, 08Feb 19, 13[D01D, D01F]
8,268,954 Method for making copolymers of lactide and a 1:4-3:6 dianhydrohexitolAug 07, 08Sep 18, 12[C08G]
8,182,725 Methods for making polylactic acid stereocomplex fibersSep 26, 08May 22, 12[D01D, D02J, D02G]
8,183,321 Impact modified polylactide resinsOct 18, 07May 22, 12[C08G, C08L]
8,114,939 Method for stabilizing polymers containing repeating lactic acid units, and stabilized polymers so madeMay 12, 08Feb 14, 12[C08G]

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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]
6,740,731 Degradation control of environmentally degradable disposable materialsExpiredFeb 12, 01May 25, 04[C08G, C08K]
6,323,307 Degradation control of environmentally degradable disposable materialsExpiredAug 16, 95Nov 27, 01[C08G, C08L]
6,025,458 Degradable polydioxaneone-based materialsExpiredJun 15, 98Feb 15, 00[C08G, C07D]
5,639,466 Method for packaging foodstuffsExpiredFeb 24, 95Jun 17, 97[A01N]
5,252,642 Degradable impact modified polyactic acidExpiredSep 06, 90Oct 12, 93[C08L]
5,180,765 Biodegradable packaging thermoplastics from lactidesExpiredSep 06, 90Jan 19, 93[C08K]
5,138,074 Continuous catalyzed vapor phase dimeric cyclic ester processExpiredJun 28, 90Aug 11, 92[C07D]
5,117,008 Solvent scrubbing recovery of lactide and other dimeric cyclic estersExpiredOct 23, 90May 26, 92[C07D]
5,091,544 Process for rapid conversion of oligomers to cyclic estersExpiredSep 21, 90Feb 25, 92[C07D]
5,076,983 Polyhydroxy acid filmsExpiredJul 16, 90Dec 31, 91[B29C]
5,028,667 Yttrium and rare earth compounds catalyzed lactone polymerizationExpiredSep 29, 89Jul 02, 91[C08G]

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