Assignee
NORTHERN PETRO CHEM CO
15 granted patents·238 citations·filing 1979–1984
Top patents by PatentIndex Score
15 records- 0189US4375531AHigh impact visbroken polymeric blendsNORTHERN PETRO CHEM CO·Filed 1982·Granted Mar 1, 1983·86 cites·10 claims
- 0270US4382870AAntifreeze corrosion inhibitor composition for aluminum enginesNORTHERN PETRO CHEM CO·Filed 1981·Granted May 10, 1983·31 cites·5 claims
- 0370US4292034APartition folding and inserting machineNORTHERN PETRO CHEM CO·Filed 1979·Granted Sep 29, 1981·24 cites·10 claims
- 0466US4426309AAntifreeze corrosion inhibitor composition for aluminum enginesNORTHERN PETRO CHEM CO·Filed 1983·Granted Jan 17, 1984·27 cites·1 claims
- 0556US4529780AProcess for polymerizing alpha olefins with phenolic compound containing catalystsNORTHERN PETRO CHEM CO·Filed 1981·Granted Jul 16, 1985·11 cites·2 claims
- 0648US4463102APolyolefin polymerization catalyst containing sterically unhindered phenolic compounds (II)NORTHERN PETRO CHEM CO·Filed 1983·Granted Jul 31, 1984·8 cites·6 claims
- 0747US4471064AOlefin polymerization catalyst activity by olefin washing and readdition of electron donorNORTHERN PETRO CHEM CO·Filed 1983·Granted Sep 11, 1984·6 cites·8 claims
- 0845US4426318ASupported polyethylene polymerization catalysts utilizing substituted polystyrene resinsNORTHERN PETRO CHEM CO·Filed 1982·Granted Jan 17, 1984·9 cites·3 claims
- 0941US4513117AProcess for conversion of vinyl copolymers to vinylic alcohol copolymers by homogeneous reaction with organometallic compoundsNORTHERN PETRO CHEM CO·Filed 1984·Granted Apr 23, 1985·4 cites·6 claims
- 1041US4471065AOlefin polymerization catalyst activity by olefin washingNORTHERN PETRO CHEM CO·Filed 1983·Granted Sep 11, 1984·4 cites·7 claims
- 1141US4407879AMethod of producing a textured filmNORTHERN PETRO CHEM CO·Filed 1981·Granted Oct 4, 1983·14 cites·9 claims
- 1237US4482638AIn situ process for producing an alpha olefin polymerization catalyst componentNORTHERN PETRO CHEM CO·Filed 1983·Granted Nov 13, 1984·5 cites·10 claims
- 1335US4457852AAnti-gel characteristics of silicate-containing antifreeze compositionsNORTHERN PETRO CHEM CO·Filed 1983·Granted Jul 3, 1984·7 cites·8 claims
- 1433US4526883AOlefin polymerization catalyst activity by simultaneous olefin washing and addition of electron donorNORTHERN PETRO CHEM CO·Filed 1984·Granted Jul 2, 1985·1 cites·6 claims
- 1528US4364852APolyolefin catalysts containing heterocyclic carboxylic acid estersNORTHERN PETRO CHEM CO·Filed 1981·Granted Dec 21, 1982·1 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →