Assignee
LUMMUS CREST INC
US·56 granted patents·1,639 citations·filing 1981–1995
Top patents by PatentIndex Score
56 records- 0196US5252183AProcess of pulping and bleaching fibrous plant material with tert-butyl alcohol and tert-butyl peroxideLUMMUS CREST INC·Filed 1991·Granted Oct 12, 1993·131 cites·12 claims
- 0292US5183556AProduction of diesel fuel by hydrogenation of a diesel feedLUMMUS CREST INC·Filed 1991·Granted Feb 2, 1993·121 cites·14 claims
- 0392US5003119AManufacture of alkylbenzenesLUMMUS CREST INC·Filed 1990·Granted Mar 26, 1991·94 cites·19 claims
- 0492US4547284ACoke productionLUMMUS CREST INC·Filed 1984·Granted Oct 15, 1985·68 cites·25 claims
- 0592US4496753ASaponification of chlorohydrinsLUMMUS CREST INC·Filed 1983·Granted Jan 29, 1985·27 cites·15 claims
- 0690US4684456AControl of bed expansion in expanded bed reactorLUMMUS CREST INC·Filed 1985·Granted Aug 4, 1987·82 cites·14 claims
- 0790US4628136ADehydrogenation process for production of styrene from ethylbenzene comprising low temperature heat recovery and modification of the ethylbenzene-steam feed therewithLUMMUS CREST INC·Filed 1985·Granted Dec 9, 1986·66 cites·11 claims
- 0889US4561965AHeat and water recovery from aqueous waste streamsLUMMUS CREST INC·Filed 1981·Granted Dec 31, 1985·46 cites·1 claims
- 0988US5190634AInhibition of coke formation during vaporization of heavy hydrocarbonsLUMMUS CREST INC·Filed 1988·Granted Mar 2, 1993·101 cites·3 claims
- 1087US5082481AMembrane separation process for cracked gasesLUMMUS CREST INC·Filed 1990·Granted Jan 21, 1992·54 cites·15 claims
- 1183US5100560AApparatus and method for supercritical water oxidationLUMMUS CREST INC·Filed 1991·Granted Mar 31, 1992·54 cites·4 claims
- 1283US4973780AAlkylation of benzene in a moving bedLUMMUS CREST INC·Filed 1988·Granted Nov 27, 1990·29 cites·10 claims
- 1382US5425415AVertical heat exchangerLUMMUS CREST INC·Filed 1993·Granted Jun 20, 1995·73 cites·4 claims
- 1481US5314610AStaged catalytic cracking processLUMMUS CREST INC·Filed 1992·Granted May 24, 1994·42 cites·15 claims
- 1581US4707245ATemperature control for hydrogenation reactionsLUMMUS CREST INC·Filed 1985·Granted Nov 17, 1987·41 cites·15 claims
- 1680US5510557AEndothermic catalytic dehydrogenation processLUMMUS CREST INC·Filed 1994·Granted Apr 23, 1996·31 cites·11 claims
- 1780US4634796AProduction of high purity phenolLUMMUS CREST INC·Filed 1985·Granted Jan 6, 1987·16 cites·14 claims
- 1880US4457834ARecovery of hydrogenLUMMUS CREST INC·Filed 1983·Granted Jul 3, 1984·39 cites·28 claims
- 1974US5087783ATransalkylation of benzene in a moving bedLUMMUS CREST INC·Filed 1990·Granted Feb 11, 1992·15 cites·7 claims
- 2072US5245093AReaction processes in a multi-stage fluidized bedLUMMUS CREST INC·Filed 1989·Granted Sep 14, 1993·26 cites·5 claims
- 2170US4594433AProduction of maleic anhydrideLUMMUS CREST INC·Filed 1984·Granted Jun 10, 1986·9 cites·19 claims
- 2269US4592831ASolvent for refining of residuesLUMMUS CREST INC·Filed 1984·Granted Jun 3, 1986·19 cites·14 claims
- 2369US4522157AConvection section assembly for process heatersLUMMUS CREST INC·Filed 1984·Granted Jun 11, 1985·26 cites·15 claims
- 2468US5021147ASolid addition and withdrawalLUMMUS CREST INC·Filed 1989·Granted Jun 4, 1991·23 cites·6 claims
- 2567US4773986AHigh severity visbreakingLUMMUS CREST INC·Filed 1986·Granted Sep 27, 1988·25 cites·22 claims
- 2665US4875995ASolid addition and withdrawalLUMMUS CREST INC·Filed 1988·Granted Oct 24, 1989·22 cites·9 claims
- 2765US4750554AInternal tube sheet sealing apparatus assembly for tubular heat exchangersLUMMUS CREST INC·Filed 1986·Granted Jun 14, 1988·32 cites·7 claims
- 2865US4744887ASolid addition and withdrawalLUMMUS CREST INC·Filed 1985·Granted May 17, 1988·22 cites·6 claims
- 2960US5200093ASupercritical water oxidation with overhead effluent quenchingLUMMUS CREST INC·Filed 1991·Granted Apr 6, 1993·25 cites·5 claims
- 3059US5220075AInitiated peroxidation of secondary carbon in alkanes and cycloalkanesLUMMUS CREST INC·Filed 1992·Granted Jun 15, 1993·8 cites·10 claims
- 3158US4795551ASolvent refining of residuesLUMMUS CREST INC·Filed 1985·Granted Jan 3, 1989·18 cites·19 claims
- 3257US4846958AHigh severity visbreaking with recycleLUMMUS CREST INC·Filed 1988·Granted Jul 11, 1989·18 cites·14 claims
- 3355US5252197AProcess for upgrading gasolines and other hydrocarbon mixturesLUMMUS CREST INC·Filed 1992·Granted Oct 12, 1993·15 cites·27 claims
- 3454US4983272AProcess for delayed coking of coking feedstocksLUMMUS CREST INC·Filed 1988·Granted Jan 8, 1991·15 cites·11 claims
- 3554US4547282ACoal liquefaction and hydrogenationLUMMUS CREST INC·Filed 1984·Granted Oct 15, 1985·11 cites·21 claims
- 3653US5389234AWaste sludge disposal processLUMMUS CREST INC·Filed 1993·Granted Feb 14, 1995·17 cites·1 claims
- 3753US4925638AThermowell assembly for a vesselLUMMUS CREST INC·Filed 1984·Granted May 15, 1990·15 cites·4 claims
- 3851US5319106AStabilization of mixtures of maleic anhydride and acrylic acid during distillationLUMMUS CREST INC·Filed 1992·Granted Jun 7, 1994·6 cites·4 claims
- 3951US5118897AReactivation of alkylation catalystsLUMMUS CREST INC·Filed 1991·Granted Jun 2, 1992·13 cites·6 claims
- 4051US4767521ATreatment of feed for high severity visbreakingLUMMUS CREST INC·Filed 1986·Granted Aug 30, 1988·14 cites·19 claims
- 4149US5334771APeroxidation of secondary carbon in alkanes and cycloalkanesLUMMUS CREST INC·Filed 1993·Granted Aug 2, 1994·7 cites·10 claims
- 4248US5502971ALow pressure recovery of olefins from refinery offgasesLUMMUS CREST INC·Filed 1995·Granted Apr 2, 1996·15 cites·6 claims
- 4348US5253703AWaste heat exchangerLUMMUS CREST INC·Filed 1992·Granted Oct 19, 1993·18 cites·3 claims
- 4448US4765398AVaporization of liquidsLUMMUS CREST INC·Filed 1987·Granted Aug 23, 1988·12 cites·8 claims
- 4546US5217935AProcesses for regenerating catalysts contaminated with carbonaceous materialsLUMMUS CREST INC·Filed 1992·Granted Jun 8, 1993·10 cites·7 claims
- 4643US5315056ACatalyst regeneration in a dehydrogenation processLUMMUS CREST INC·Filed 1992·Granted May 24, 1994·14 cites·8 claims
- 4743US5227555AProduction of gasoline from light hydrocarbonsLUMMUS CREST INC·Filed 1988·Granted Jul 13, 1993·9 cites·20 claims
- 4843US5120429ACo-processing of carbonaceous solids and petroleum oilLUMMUS CREST INC·Filed 1987·Granted Jun 9, 1992·8 cites·16 claims
- 4943US4490153AProcess for the production of gasoholLUMMUS CREST INC·Filed 1983·Granted Dec 25, 1984·6 cites·11 claims
- 5042US4596650ALiquefaction of sub-bituminous coalLUMMUS CREST INC·Filed 1984·Granted Jun 24, 1986·6 cites·17 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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