IFP ENTERPRISES
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 03, 1991 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 241 Total Citation Count
- Jun 30, 1978 Earliest Filing
- 21 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Recent Publications
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5045180 Catalytic two-stage coal liquefaction process having improved nitrogen removalExpiredApr 16, 90Sep 03, 91[C10G]
5033413 Fluidized bed combustion system and method utilizing capped dual-sided contact unitsExpiredJul 02, 90Jul 23, 91[B09B, F22B]
4947803 Fludized bed reactor using capped dual-sided contact units and methods for useExpiredMay 08, 89Aug 14, 90[F22B]
4879021 Hydrogenation of coal and subsequent liquefaction of hydrogenated undissolved coalExpiredAug 26, 88Nov 07, 89[C10G]
4874506 Catalytic two-stage coal hydrogenation process using extinction recycle of heavy liquid fractionExpiredOct 16, 87Oct 17, 89[C10G]
4842719 Catalytic two-stage coal hydrogenation and hydroconversion processExpiredJun 18, 86Jun 27, 89[C10G]
4816141 Catalytic two-stage liquefaction of coal utilizing cascading of used ebullated-bed catalystExpiredOct 16, 87Mar 28, 89[C10G]
4510037 Hydrogenation process for solid carbonaceous feed materials using thermal countercurrent flow reaction zoneExpiredDec 23, 83Apr 09, 85[C10G]
4495055 Coal catalytic hydrogenation process using direct coal slurry feed to reactor with controlled mixing conditionsExpiredJan 26, 84Jan 22, 85[C10G]
4470900 Solids precipitation and polymerization of asphaltenes in coal-derived liquidsExpiredMay 12, 80Sep 11, 84[C10G, B01D]
4454240 Catalyst regeneration process including metal contaminants removalExpiredNov 02, 81Jun 12, 84[B01J, C10G, C01G]
4437973 Coal hydrogenation process with direct coal feed and improved residuum conversionExpiredApr 05, 82Mar 20, 84[C10G]
4404084 Coal hydrogenation and deashing in ebullated bed catalytic reactorExpiredMar 11, 82Sep 13, 83[C10G]
4398852 Process and apparatus for adding and removing particles from pressurized reactorsExpiredFeb 17, 81Aug 16, 83[B65G]
4381986 Cooling and solidification of heavy hydrocarbon liquid streamsExpiredJul 27, 81May 03, 83[C10C]
4315824 Filtration of coal-derived liquids containing particulate solidsExpiredJun 03, 80Feb 16, 82[B01D]
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