Assignee
DU PONT CANADA
CA·204 granted patents·1 pending application·5,935 citations·filing 1972–2003
Top patents by PatentIndex Score
205 records- 0197US5051114APerfluorodioxole membranesDU PONT CANADA·Filed 1990·Granted Sep 24, 1991·212 cites·41 claims
- 0296US4307471AProtective helmetDU PONT CANADA·Filed 1978·Granted Dec 29, 1981·300 cites·8 claims
- 0395US6465107B1Silicone-containing polyolefin filmDU PONT CANADA·Filed 2000·Granted Oct 15, 2002·86 cites·30 claims
- 0495US4737547APolyolefin blends containing reactive agentsDU PONT CANADA·Filed 1986·Granted Apr 12, 1988·83 cites·33 claims
- 0594US5188787AProcess for the injection moulding of multi-layered articlesDU PONT CANADA·Filed 1992·Granted Feb 23, 1993·130 cites·3 claims
- 0694US4226905AManufacture of film from partially crosslinked polyethyleneDU PONT CANADA·Filed 1979·Granted Oct 7, 1980·88 cites·15 claims
- 0793US4612155AProcess for the grafting of monomers onto polyolefinsDU PONT CANADA·Filed 1985·Granted Sep 16, 1986·125 cites·24 claims
- 0893US4082880APaper-like thermoplastic filmDU PONT CANADA·Filed 1977·Granted Apr 4, 1978·69 cites·18 claims
- 0992US5604033ACross-linkable adhesive polymersDU PONT CANADA·Filed 1995·Granted Feb 18, 1997·87 cites·3 claims
- 1092US3951284ADevice for transporting bulk materials and methodsDU PONT CANADA·Filed 1975·Granted Apr 20, 1976·144 cites·23 claims
- 1191US5051113AAir-intake system for mobile enginesDU PONT CANADA·Filed 1990·Granted Sep 24, 1991·84 cites·21 claims
- 1291US5010608ASupport system for reducing formation of decubitus ulcersDU PONT CANADA·Filed 1989·Granted Apr 30, 1991·120 cites·36 claims
- 1391US4955435AHeat exchanger fabricated from polymer compositionsDU PONT CANADA·Filed 1988·Granted Sep 11, 1990·83 cites·3 claims
- 1491US4503102APouches of ethylene-α-olefin copolymer/ethylene-vinyl acetate copolymer blendsDU PONT CANADA·Filed 1983·Granted Mar 5, 1985·68 cites·10 claims
- 1591US4147717AProcess for purifying adiponitrileDU PONT CANADA·Filed 1977·Granted Apr 3, 1979·36 cites·6 claims
- 1690US5618881ACompatibilizer compositionDU PONT CANADA·Filed 1995·Granted Apr 8, 1997·85 cites·9 claims
- 1790US4521437APouches of ethylene/octene-1 copolymer film containing a flowable materialDU PONT CANADA·Filed 1983·Granted Jun 4, 1985·151 cites·13 claims
- 1890US4146555AProcess for purifying adiponitrileDU PONT CANADA·Filed 1977·Granted Mar 27, 1979·33 cites·1 claims
- 1989US4803259AIsopropanolamines as catalyst deactivators in solution process for polymerization of alpha-olefinsDU PONT CANADA·Filed 1987·Granted Feb 7, 1989·53 cites·11 claims
- 2088US3984610AEthylene polymers with long chain branchingDU PONT CANADA·Filed 1972·Granted Oct 5, 1976·50 cites·16 claims
- 2187US4315821ATreatment of nitrogenous wastesDU PONT CANADA·Filed 1978·Granted Feb 16, 1982·62 cites·4 claims
- 2286US4740377AMethod for microwave cooking of foodsDU PONT CANADA·Filed 1986·Granted Apr 26, 1988·74 cites·25 claims
- 2386US4022646AProcess for the manufacture of co-oriented laminated ethylene polymer filmsDU PONT CANADA·Filed 1974·Granted May 10, 1977·46 cites·9 claims
- 2486US3960820ARegulating the flow of molten polyamides in a continuous process for the preparation thereofDU PONT CANADA·Filed 1974·Granted Jun 1, 1976·53 cites·9 claims
- 2585US5429273AApparatus for dispensing flowable materials from a pouchDU PONT CANADA·Filed 1994·Granted Jul 4, 1995·66 cites·3 claims
- 2685US5302691AManufacture of terephthalic acid/2-methylpentamethylene diamine/hexamethylene diamine copolyamidesDU PONT CANADA·Filed 1992·Granted Apr 12, 1994·36 cites·4 claims
- 2785US5050671APanel heat exchangers formed from thermoplastic polymersDU PONT CANADA·Filed 1990·Granted Sep 24, 1991·54 cites·13 claims
- 2885US4061706AProcess for the continuous melt thermoforming of polymersDU PONT CANADA·Filed 1975·Granted Dec 6, 1977·76 cites·20 claims
- 2985US4019866ARecirculating reaction apparatus for continuous preparation of a polyamideDU PONT CANADA·Filed 1975·Granted Apr 26, 1977·76 cites·4 claims
- 3085US3998914AFilm from a blend of high density polyethylene and a low density ethylene polymerDU PONT CANADA·Filed 1974·Granted Dec 21, 1976·58 cites·18 claims
- 3185US3951050ATube forming processDU PONT CANADA·Filed 1974·Granted Apr 20, 1976·35 cites·1 claims
- 3284US4927689AGas barrier structuresDU PONT CANADA·Filed 1987·Granted May 22, 1990·88 cites·11 claims
- 3384US4657982ABlends of polyethylene and polybutenesDU PONT CANADA·Filed 1983·Granted Apr 14, 1987·37 cites·2 claims
- 3483US5972443AMultilayer ethylene copolymer filmDU PONT CANADA·Filed 1995·Granted Oct 26, 1999·55 cites·30 claims
- 3583US4008352AHeat lamination of thermoplastic filmsDU PONT CANADA·Filed 1975·Granted Feb 15, 1977·47 cites·17 claims
- 3682US6767599B2Process for manufacturing pouches of ethylene copolymer film for containing a flowable materialDU PONT CANADA·Filed 2002·Granted Jul 27, 2004·27 cites·12 claims
- 3782US6589463B1High tensile strength polethylene terephthalate film and processDU PONT CANADA·Filed 2000·Granted Jul 8, 2003·29 cites·7 claims
- 3882US5247779ASelf voiding jaw for packaging machineDU PONT CANADA·Filed 1990·Granted Sep 28, 1993·55 cites·2 claims
- 3982US5205886AMethod of lining metallic pipe using concentric tubes of thermoplastic polymer and tear resistant materialDU PONT CANADA·Filed 1992·Granted Apr 27, 1993·49 cites·7 claims
- 4082US4838477AMethod of welding flanged pipe sections and apparatus thereforDU PONT CANADA·Filed 1988·Granted Jun 13, 1989·43 cites·32 claims
- 4182US4226079AHeather yarn made by combining polyester and polyamide yarnsDU PONT CANADA·Filed 1979·Granted Oct 7, 1980·23 cites·8 claims
- 4281US6416833B1Interpolymer film pouchDU PONT CANADA·Filed 1998·Granted Jul 9, 2002·53 cites·14 claims
- 4381US5147417AAir-intake system for mobile enginesDU PONT CANADA·Filed 1991·Granted Sep 15, 1992·51 cites·29 claims
- 4481US4978436ACorona-discharge treated release filmsDU PONT CANADA·Filed 1989·Granted Dec 18, 1990·47 cites·5 claims
- 4581US4722858AFire-retardant sheet materialDU PONT CANADA·Filed 1986·Granted Feb 2, 1988·32 cites·31 claims
- 4681US4678834ABlends of polyolefins with polymers containing reactive agentsDU PONT CANADA·Filed 1985·Granted Jul 7, 1987·54 cites·30 claims
- 4781US4143187AProcess for coating sheet substrates with thermoplastic polymerDU PONT CANADA·Filed 1977·Granted Mar 6, 1979·47 cites·14 claims
- 4880US5325995APiercing nozzle for pouch fitmentDU PONT CANADA·Filed 1993·Granted Jul 5, 1994·54 cites·4 claims
- 4980US5169900APolyolefin coatings and films having release characteristicsDU PONT CANADA·Filed 1990·Granted Dec 8, 1992·69 cites·6 claims
- 5080US4430488ADeactivation of catalyst in solution process for polymerization of α-oDU PONT CANADA·Filed 1982·Granted Feb 7, 1984·27 cites·7 claims
Showing the top 50 of 205 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when DU PONT CANADA files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →