DUPONT CANADA INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM5152
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 5120
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 4116
 
  
 
B01D SEPARATION 3131
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 3113
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS126

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7122255 Multilayered composite polyamide articles and processes for their preparationDec 09, 03Oct 17, 06[B32B]
6720459 Continuous process for the preparation of polytrimethylene ether glycolDec 15, 00Apr 13, 04[C07C]
6465107 Silicone-containing polyolefin filmSep 28, 00Oct 15, 02[C08L, B32B]
6399191 Moisture resistant coated metal substratesFeb 23, 00Jun 04, 02[B32B]
6380320 Process for preparing anhydride-grafted polymers with improved colorOct 19, 00Apr 30, 02[C08F]
6331595 Grafting of monomers onto polyolefins in presence of organic peroxidesApr 28, 94Dec 18, 01[C08F]
6228948 High melt flow, highly-grafted polypropyleneJan 15, 99May 08, 01[C08F, C08L]
6077373 Manufacture of multilayer polymer filmsAug 05, 97Jun 20, 00[B32B]
5981692 Semi-crystalline, semi-aromatic terpolymers with superior post-molding shrinkage and balance of mechanical performanceMay 15, 97Nov 09, 99[C08G]
5753771 Nucleophilic amine functionalized polyolefinNov 06, 96May 19, 98[C08F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7153603 Process for decreasing the resistivity of conductive flow field plates for use in fuel cellsExpiredMar 17, 03Dec 26, 06[H01M]
2006/0169,952 Composition and method for making fuel cell collector plates with improved propertiesAbandonedSep 11, 03Aug 03, 06[H01B]
6884529 Method of heating up a solid polymer electrolyte fuel cell systemExpiredFeb 06, 02Apr 26, 05[H01M]
2005/0069,660 Composite film structure for manufacturing pouches using rotary thermic sealingAbandonedNov 22, 04Mar 31, 05[B27N, B32B]
2004/0191,608 Post-molding treatment of current collector plates for fuel cell to improve conductivityAbandonedJun 23, 03Sep 30, 04[C08J, H01M]
2004/0158,447 Method for simulating and modeling the presence and growth of microbes, including pathogens and spoilage organisms, through a food supply chainAbandonedFeb 07, 03Aug 12, 04[G06G]
6753055 Heat exchangers containing liquid crystalline polymer layersExpiredDec 18, 02Jun 22, 04[C08K]
2004/0058,249 Mesh reinforced fuel cell separator plateAbandonedDec 13, 02Mar 25, 04[H01M]
6589463 High tensile strength polethylene terephthalate film and processExpiredMar 26, 02Jul 08, 03[B29C]
6364652 Manufacture of liquid crystalline polymer filmsExpiredMay 26, 00Apr 02, 02[B29C]
6355769 Partially aromatic polyamides and a process for making themExpiredJun 21, 00Mar 12, 02[C08G]
2002/0007,013 Compositions containing elastomeric ethylene or (meth)acrylic ester copolymersAbandonedApr 10, 01Jan 17, 02[C08L]
2001/0032,710 Easy-mount sealing element for packaging machinesAbandonedJan 11, 01Oct 25, 01[B30B]
2001/0028,929 Films having improved sealing propertiesAbandonedFeb 05, 01Oct 11, 01[B32B]
6248861 Manufacture of branched polyamidesExpiredJun 01, 00Jun 19, 01[C08G]
6162317 Heat exchanger tubing with yarn turbulatorExpiredApr 14, 98Dec 19, 00[B29C, F28F]
6159412 Method for manufacture of liquid crystalline polymer filmsExpiredAug 05, 97Dec 12, 00[B29C]
5639819 Polyamide compositionsExpiredJul 09, 93Jun 17, 97[C08J, C08L, C08K]
5618881 Compatibilizer compositionExpiredJan 09, 95Apr 08, 97[C08L]
5520963 Paint formulationExpiredJun 30, 94May 28, 96[B05D]

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