Assignee
PARSONS CO RALPH M
US·25 granted patents·526 citations·filing 1973–1991
Top patents by PatentIndex Score
25 records- 0193US4017383ASolvent deasphalting process by solvent recovery at staged pressuresPARSONS CO RALPH M·Filed 1975·Granted Apr 12, 1977·64 cites·7 claims
- 0292US4038036AApparatus for the production of sulfur from mixtures of hydrogen sulfide and fixed nitrogen compoundsPARSONS CO RALPH M·Filed 1976·Granted Jul 26, 1977·45 cites·9 claims
- 0390US4279882AProcess for sulfur productionPARSONS CO RALPH M·Filed 1979·Granted Jul 21, 1981·41 cites·31 claims
- 0488US3938968AProcess for the production of substitute natural gasPARSONS CO RALPH M·Filed 1974·Granted Feb 17, 1976·39 cites·13 claims
- 0581US4406873AProcess for sulfur productionPARSONS CO RALPH M·Filed 1981·Granted Sep 27, 1983·28 cites·3 claims
- 0680US4233141AProcess for removal of carbonyl sulfide in liquified hydrocarbon gases with absorption of acid gasesPARSONS CO RALPH M·Filed 1979·Granted Nov 11, 1980·16 cites·18 claims
- 0777US4115075AProcess for the production of fuel values from carbonaceous materialsPARSONS CO RALPH M·Filed 1977·Granted Sep 19, 1978·25 cites·42 claims
- 0876US4041130AProcess for desulfurization of coke oven gasPARSONS CO RALPH M·Filed 1975·Granted Aug 9, 1977·24 cites·25 claims
- 0972US4094961AHydrogen sulfide productionPARSONS CO RALPH M·Filed 1974·Granted Jun 13, 1978·16 cites·13 claims
- 1071US4146580AProcess for hydrogen sulfide productionPARSONS CO RALPH M·Filed 1977·Granted Mar 27, 1979·17 cites·28 claims
- 1171US4050908AProcess for the production of fuel values from coalPARSONS CO RALPH M·Filed 1976·Granted Sep 27, 1977·17 cites·23 claims
- 1271US3945435AIn situ recovery of hydrocarbons from tar sandsPARSONS CO RALPH M·Filed 1974·Granted Mar 23, 1976·36 cites·7 claims
- 1368US3970743AProcess for the production of sulfur from mixtures of hydrogen sulfide and fixed nitrogen compoundsPARSONS CO RALPH M·Filed 1974·Granted Jul 20, 1976·20 cites·5 claims
- 1466US4012488AProcess for the treatment of sulfur and nitrogen oxides formed during power generationPARSONS CO RALPH M·Filed 1974·Granted Mar 15, 1977·13 cites·15 claims
- 1565US3946810AIn situ recovery of hydrocarbons from tar sandsPARSONS CO RALPH M·Filed 1974·Granted Mar 30, 1976·30 cites·10 claims
- 1662US5194239AOxygen-based noncatalytic sulfuric acid processPARSONS CO RALPH M·Filed 1991·Granted Mar 16, 1993·22 cites·31 claims
- 1762US4780305ADual combustion oxygen-enriched claus sulfur plantPARSONS CO RALPH M·Filed 1986·Granted Oct 25, 1988·23 cites·20 claims
- 1849US3999961ASulfur control over carbon formation in high temperature reforming operationsPARSONS CO RALPH M·Filed 1975·Granted Dec 28, 1976·8 cites·14 claims
- 1945US4029753ASulfur plant temperature controlPARSONS CO RALPH M·Filed 1976·Granted Jun 14, 1977·6 cites·8 claims
- 2043US3970744AProcess for the production of sulfur from sulfur dioxide extracted from gas streamsPARSONS CO RALPH M·Filed 1974·Granted Jul 20, 1976·9 cites·8 claims
- 2141US4483693AReforming of hydrocarbons in the presence of sulfurPARSONS CO RALPH M·Filed 1982·Granted Nov 20, 1984·6 cites·19 claims
- 2238US4039621APower generation wherein sulfur and nitrogen oxides are removedPARSONS CO RALPH M·Filed 1974·Granted Aug 2, 1977·8 cites·6 claims
- 2338US3956460AProcess for the treatment of gas streams containing hydrogen cyanidePARSONS CO RALPH M·Filed 1973·Granted May 11, 1976·9 cites·12 claims
- 2433US4104191AHydrogen generation from flue gasesPARSONS CO RALPH M·Filed 1977·Granted Aug 1, 1978·3 cites·8 claims
- 2521US4055401AReducing gas generatorPARSONS CO RALPH M·Filed 1975·Granted Oct 25, 1977·1 cites·10 claims
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