Assignee
INT COAL REFINING CO
US·35 granted patents·647 citations·filing 1980–1985
Top patents by PatentIndex Score
35 records- 0198US4397732AProcess for coal liquefaction employing selective coal feedINT COAL REFINING CO·Filed 1982·Granted Aug 9, 1983·283 cites·30 claims
- 0278US4924784AFiring of pulverized solvent refined coalINT COAL REFINING CO·Filed 1984·Granted May 15, 1990·37 cites·16 claims
- 0376US4603115AAutomated process for solvent separation of organic/inorganic substanceINT COAL REFINING CO·Filed 1984·Granted Jul 29, 1986·32 cites·21 claims
- 0472US4272501ACarbon fibers from SRC pitchINT COAL REFINING CO·Filed 1980·Granted Jun 9, 1981·15 cites·4 claims
- 0566US4634680ASequential elution processINT COAL REFINING CO·Filed 1983·Granted Jan 6, 1987·34 cites·12 claims
- 0666US4534847AProcess for producing low-sulfur boiler fuel by hydrotreatment of solvent deashed SRCINT COAL REFINING CO·Filed 1984·Granted Aug 13, 1985·18 cites·4 claims
- 0766US4392940ACoal-oil slurry preparationINT COAL REFINING CO·Filed 1981·Granted Jul 12, 1983·15 cites·12 claims
- 0866US4376032ACoal Liquefaction desulfurization processINT COAL REFINING CO·Filed 1981·Granted Mar 8, 1983·17 cites·11 claims
- 0965US4737261AProcess for the production of premium grade needle coke from a hydrotreated SRC materialINT COAL REFINING CO·Filed 1984·Granted Apr 12, 1988·9 cites·10 claims
- 1061US4492674AAutomated apparatus for solvent separation of a coal liquefaction product streamINT COAL REFINING CO·Filed 1983·Granted Jan 8, 1985·14 cites·9 claims
- 1161US4491511ATwo-stage coal liquefaction processINT COAL REFINING CO·Filed 1983·Granted Jan 1, 1985·16 cites·1 claims
- 1259US4521299ARemoval of basic nitrogen compounds from hydrocarbon liquidsINT COAL REFINING CO·Filed 1983·Granted Jun 4, 1985·13 cites·6 claims
- 1357US4570551AFiring of pulverized solvent refined coalINT COAL REFINING CO·Filed 1984·Granted Feb 18, 1986·16 cites·7 claims
- 1451US4536275AIntegrated two-stage coal liquefaction processINT COAL REFINING CO·Filed 1984·Granted Aug 20, 1985·12 cites·7 claims
- 1549US4576121AConvective heaterINT COAL REFINING CO·Filed 1984·Granted Mar 18, 1986·10 cites·9 claims
- 1649US4422411AConvective heaterINT COAL REFINING CO·Filed 1981·Granted Dec 27, 1983·12 cites·1 claims
- 1747US4518479ATime phased alternate blending of feed coals for liquefactionINT COAL REFINING CO·Filed 1984·Granted May 21, 1985·11 cites·4 claims
- 1847US4480560APneumatic conveying of pulverized solvent refined coalINT COAL REFINING CO·Filed 1983·Granted Nov 6, 1984·11 cites·1 claims
- 1947US4399041AProcess for particulate removal from coal liquidsINT COAL REFINING CO·Filed 1981·Granted Aug 16, 1983·11 cites·11 claims
- 2046US4609455ACoal liquefaction with preasphaltene recycleINT COAL REFINING CO·Filed 1985·Granted Sep 2, 1986·11 cites·8 claims
- 2143US4461694ACoal liquefaction process with enhanced process solventINT COAL REFINING CO·Filed 1982·Granted Jul 24, 1984·8 cites·4 claims
- 2241US4547201ASRC Residual fuel oilsINT COAL REFINING CO·Filed 1983·Granted Oct 15, 1985·7 cites·8 claims
- 2341US4510040ACoal liquefaction processINT COAL REFINING CO·Filed 1983·Granted Apr 9, 1985·7 cites·5 claims
- 2440US4514281ACorrosion inhibition for distillation apparatusINT COAL REFINING CO·Filed 1984·Granted Apr 30, 1985·6 cites·3 claims
- 2538US4511460AMinimizing corrosion in coal liquid distillationINT COAL REFINING CO·Filed 1984·Granted Apr 16, 1985·6 cites·6 claims
- 2631US4558651AFired heater for coal liquefaction processINT COAL REFINING CO·Filed 1983·Granted Dec 17, 1985·1 cites·10 claims
- 2731US4511453ACorrosion inhibition when distilling coal liquids by adding cresols or phenolsINT COAL REFINING CO·Filed 1984·Granted Apr 16, 1985·3 cites·2 claims
- 2830US4421630AProcess for coal liquefaction in staged dissolversINT COAL REFINING CO·Filed 1981·Granted Dec 20, 1983·1 cites·15 claims
- 2930US4414094ASolvent refined coal reactor quench systemINT COAL REFINING CO·Filed 1983·Granted Nov 8, 1983·0 cites·8 claims
- 3030US4400261AProcess for coal liquefaction by separation of entrained gases from slurry exiting staged dissolversINT COAL REFINING CO·Filed 1981·Granted Aug 23, 1983·1 cites·12 claims
- 3129US4675024AProcess for preparing a stabilized coal-water slurryINT COAL REFINING CO·Filed 1984·Granted Jun 23, 1987·0 cites·12 claims
- 3229US4555248AProcess for stabilizing the viscosity characteristics of coal derived materials and the stabilized materials obtained therebyINT COAL REFINING CO·Filed 1984·Granted Nov 26, 1985·3 cites·12 claims
- 3329US4387015ACoal liquefaction quenching processINT COAL REFINING CO·Filed 1982·Granted Jun 7, 1983·3 cites·9 claims
- 3428US4488594AFired heater for coal liquefaction processINT COAL REFINING CO·Filed 1983·Granted Dec 18, 1984·1 cites·8 claims
- 3526US4583868ATemperature differential detection deviceINT COAL REFINING CO·Filed 1983·Granted Apr 22, 1986·3 cites·9 claims
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