DuPont Canada Inc.
207Patents
0Active
207Granted
42Portfolio score
Filing activity: Apr 13, 1972 → Dec 18, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4307471A | Protective helmet | Human Necessities | 203 | Expired |
| US5051114A | Perfluorodioxole membranes | Performing Operations; Transporting | 135 | Expired |
| US4521437A | Pouches of ethylene/octene-1 copolymer film containing a flowable material | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5188787A | Process for the injection moulding of multi-layered articles | Emerging Cross-Sectional Technologies | 86 | Expired |
| US3951284A | Device for transporting bulk materials and methods | Performing Operations; Transporting | 81 | Expired |
| US5010608A | Support system for reducing formation of decubitus ulcers | Human Necessities | 80 | Expired |
| US4612155A | Process for the grafting of monomers onto polyolefins | Chemistry; Metallurgy | 75 | Expired |
| US5051113A | Air-intake system for mobile engines | Emerging Cross-Sectional Technologies | 64 | Expired |
| US4061706A | Process for the continuous melt thermoforming of polymers | Performing Operations; Transporting | 59 | Expired |
| US4737547A | Polyolefin blends containing reactive agents | Chemistry; Metallurgy | 59 | Expired |
| US5604033A | Cross-linkable adhesive polymers | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4226905A | Manufacture of film from partially crosslinked polyethylene | Performing Operations; Transporting | 57 | Expired |
| US5378800A | Terephthalic acid copolyamides | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4955435A | Heat exchanger fabricated from polymer compositions | Emerging Cross-Sectional Technologies | 52 | Expired |
| US4927689A | Gas barrier structures | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4678834A | Blends of polyolefins with polymers containing reactive agents | Chemistry; Metallurgy | 49 | Expired |
| US4082880A | Paper-like thermoplastic film | Performing Operations; Transporting | 46 | Expired |
| US5618881A | Compatibilizer composition | Chemistry; Metallurgy | 43 | Expired |
| US5169900A | Polyolefin coatings and films having release characteristics | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6465107B1 | Silicone-containing polyolefin film | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5325995A | Piercing nozzle for pouch fitment | Performing Operations; Transporting | 41 | Expired |
| US4004774A | Coated panel | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6416833B1 | Interpolymer film pouch | Emerging Cross-Sectional Technologies | 40 | Expired |
| US3984610A | Ethylene polymers with long chain branching | Chemistry; Metallurgy | 39 | Expired |
| US3998914A | Film from a blend of high density polyethylene and a low density ethylene polymer | Chemistry; Metallurgy | 38 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.