Assignee
PITTSBURGH MIDWAY COAL MINING
10 granted patents·198 citations·filing 1980–1982
Top patents by PatentIndex Score
10 records- 0188US4422927AProcess for removing polymer-forming impurities from naphtha fractionPITTSBURGH MIDWAY COAL MINING·Filed 1982·Granted Dec 27, 1983·87 cites·17 claims
- 0278US4356078AProcess for blending coal with water immiscible liquidPITTSBURGH MIDWAY COAL MINING·Filed 1980·Granted Oct 26, 1982·32 cites·26 claims
- 0359US4364818AControl of pyrite addition in coal liquefaction processPITTSBURGH MIDWAY COAL MINING·Filed 1981·Granted Dec 21, 1982·16 cites·15 claims
- 0455US4424108AProcess for heating coal-oil slurriesPITTSBURGH MIDWAY COAL MINING·Filed 1982·Granted Jan 3, 1984·16 cites·41 claims
- 0554US4364817AMethod for controlling boiling point distribution of coal liquefaction oil productPITTSBURGH MIDWAY COAL MINING·Filed 1981·Granted Dec 21, 1982·13 cites·27 claims
- 0652US4328088AControlled short residence time coal liquefaction processPITTSBURGH MIDWAY COAL MINING·Filed 1980·Granted May 4, 1982·12 cites·26 claims
- 0747US4378183AApparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquidPITTSBURGH MIDWAY COAL MINING·Filed 1980·Granted Mar 29, 1983·11 cites·34 claims
- 0838US4330388AShort residence time coal liquefaction process including catalytic hydrogenationPITTSBURGH MIDWAY COAL MINING·Filed 1980·Granted May 18, 1982·6 cites·32 claims
- 0936US4377464ACoal liquefaction processPITTSBURGH MIDWAY COAL MINING·Filed 1981·Granted Mar 22, 1983·5 cites·10 claims
- 1027US4457826APrevention of deleterious deposits in a coal liquefaction systemPITTSBURGH MIDWAY COAL MINING·Filed 1982·Granted Jul 3, 1984·0 cites·10 claims
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