Assignee
TOSCO CORP
US25 patents
Top patents by PatentIndex Score
US5792339AAug 11, 1998
Diesel fuel
TOSCO CORP41 citations92
US4459157AJul 10, 1984
Asphalt composition
TOSCO CORP69 citations92
US6214238B1Apr 10, 2001
Method for removing selenocyanate ions from waste water
TOSCO CORP31 citations91
US4243639AJan 6, 1981
Method for recovering vanadium from petroleum coke
TOSCO CORP146 citations89
US4210491AJul 1, 1980
Method and apparatus for retorting a substance containing organic matter
TOSCO CORP47 citations86
US4193756AMar 18, 1980
Seal assembly and method for providing a seal in a rotary kiln
TOSCO CORP56 citations85
US4509589AApr 9, 1985
Circulating bed heat exchanger for cooling shale ash
TOSCO CORP19 citations80
US4260456AApr 7, 1981
Single retort manufacturing technique for producing valuable char and gases from coke
TOSCO CORP26 citations75
US4421603ADec 20, 1983
Process for recovering carbonaceous liquids from solid carbonaceous particles
TOSCO CORP9 citations72
US4361333ANov 30, 1982
Retort seal mechanism with integral bearings
TOSCO CORP14 citations72
US4413573ANov 8, 1983
Process for combusting carbonaceous solids containing nitrogen
TOSCO CORP14 citations67
US4264568AApr 28, 1981
Method for easily removing zinc from carbon black contaminated with zinc
TOSCO CORP11 citations67
US4231998ANov 4, 1980
Method for separating carbon black from fiberglass
TOSCO CORP7 citations65
US4445976AMay 1, 1984
Method of entrained flow drying
TOSCO CORP18 citations64
US4401553AAug 30, 1983
System and method for lowered hydrogen sulfide emissions from oil shale
TOSCO CORP17 citations64
US4353558AOct 12, 1982
Hydrostatic retort seal
TOSCO CORP4 citations61
US4312740AJan 26, 1982
Process for maximizing oil yield in the retorting of oil shale
TOSCO CORP20 citations60
US4384947AMay 24, 1983
Preheating of oil shale prior to pyrolysis
TOSCO CORP10 citations59
US4407653AOct 4, 1983
Apparatus for heating solid heat-carrying bodies
TOSCO CORP5 citations56
US4226699AOct 7, 1980
Method and apparatus for conservation of heat from sludge produced by a retort
TOSCO CORP5 citations56
US4193760AMar 18, 1980
Apparatus and method for heating a plurality of solids
TOSCO CORP3 citations51
US4325925AApr 20, 1982
Method for the removal of nitric oxide from gas streams
TOSCO CORP1 citations45
US6558646B1May 6, 2003
Method for increasing the lifetime of stretford solution
TOSCO CORP2 citations44
US4427493AJan 24, 1984
Apparatus for practicing heat flux control technique
TOSCO CORP1 citations38
US4374017AFeb 15, 1983
Heat flux control technique
TOSCO CORP1 citations38