NORTHERN PETROCHEMICAL COMPANY
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 09, 1991 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 206 Total Citation Count
- Nov 28, 1979 Earliest Filing
- 19 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4643945 Heat sealable blend of polypropylene terpolymers and linear low density polyethyleneExpiredSep 03, 85Feb 17, 87[B32B]
4629657 Biaxially oriented polypropylene film construction for special laminationExpiredDec 13, 82Dec 16, 86[B32B]
4629749 Clarity of low density polyethylene compositions containing anti-block agents by addition of polyethylene glycolExpiredJul 24, 85Dec 16, 86[C08K]
4529780 Process for polymerizing alpha olefins with phenolic compound containing catalystsExpiredNov 19, 81Jul 16, 85[C08F]
4526883 Olefin polymerization catalyst activity by simultaneous olefin washing and addition of electron donorExpiredJun 20, 84Jul 02, 85[C08F]
4513117 Process for conversion of vinyl copolymers to vinylic alcohol copolymers by homogeneous reaction with organometallic compoundsExpiredMay 07, 84Apr 23, 85[C08F]
4482638 In situ process for producing an alpha olefin polymerization catalyst componentExpiredJul 14, 83Nov 13, 84[C08F]
4471064 Olefin polymerization catalyst activity by olefin washing and readdition of electron donorExpiredSep 09, 83Sep 11, 84[C08F]
4463102 Polyolefin polymerization catalyst containing sterically unhindered phenolic compounds (II)ExpiredJan 28, 83Jul 31, 84[C08F]
4457852 Anti-gel characteristics of silicate-containing antifreeze compositionsExpiredJul 14, 83Jul 03, 84[C09K]
4426309 Antifreeze corrosion inhibitor composition for aluminum enginesExpiredMar 10, 83Jan 17, 84[C09K, F28F]
4426318 Supported polyethylene polymerization catalysts utilizing substituted polystyrene resinsExpiredDec 01, 82Jan 17, 84[C08F]
4382870 Antifreeze corrosion inhibitor composition for aluminum enginesExpiredJul 06, 81May 10, 83[C09K, F28F]
4364852 Polyolefin catalysts containing heterocyclic carboxylic acid estersExpiredJun 04, 81Dec 21, 82[C08F]
Top Inventors for This Owner
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