Assignee
DORR OLIVER INC
139 granted patents·3,410 citations·filing 1972–1997
Top patents by PatentIndex Score
139 records- 0194US4661455AMembrane cell culturing deviceDORR OLIVER INC·Filed 1986·Granted Apr 28, 1987·133 cites·20 claims
- 0292US4914029AProcess for steeping cereals with a new enzyme preparationDORR OLIVER INC·Filed 1988·Granted Apr 3, 1990·140 cites·26 claims
- 0392US4202774AFlow distributor for fluid bed biological reactorDORR OLIVER INC·Filed 1978·Granted May 13, 1980·60 cites·17 claims
- 0491US4107026ASystem and method for electric dewatering of solids suspensionDORR OLIVER INC·Filed 1976·Granted Aug 15, 1978·67 cites·43 claims
- 0590US5429581AWear-resistant tile surfacing for a centrifuge conveyorDORR OLIVER INC·Filed 1994·Granted Jul 4, 1995·77 cites·20 claims
- 0689US4159682AFluid bed combustion with predrying of moist feed using bed sandDORR OLIVER INC·Filed 1977·Granted Jul 3, 1979·50 cites·33 claims
- 0789US4017585AFluid bed calcination processDORR OLIVER INC·Filed 1974·Granted Apr 12, 1977·38 cites·2 claims
- 0888US5470472ARotary drum filter with reciprocating nozzle meansDORR OLIVER INC·Filed 1994·Granted Nov 28, 1995·97 cites·10 claims
- 0988US5364335ADisc-decanter centrifugeDORR OLIVER INC·Filed 1993·Granted Nov 15, 1994·119 cites·16 claims
- 1088US4301771AFluidized bed heat exchanger with water cooled air distributor and dust hopperDORR OLIVER INC·Filed 1980·Granted Nov 24, 1981·67 cites·10 claims
- 1187US4232614AProcess of incineration with predrying of moist feed using hot inert particulatesDORR OLIVER INC·Filed 1979·Granted Nov 11, 1980·43 cites·4 claims
- 1286US4053375AProcess for recovery of alumina-cryolite waste in aluminum productionDORR OLIVER INC·Filed 1976·Granted Oct 11, 1977·54 cites·7 claims
- 1386US3982901AHeat transfer element and tuyere for fluidized bed reactorDORR OLIVER INC·Filed 1975·Granted Sep 28, 1976·43 cites·12 claims
- 1485US4425232AFlotation separation apparatus and methodDORR OLIVER INC·Filed 1982·Granted Jan 10, 1984·57 cites·5 claims
- 1585US4341801AUltrafiltration process for the preparation of cream cheeseDORR OLIVER INC·Filed 1977·Granted Jul 27, 1982·58 cites·10 claims
- 1683US4096909AFluidized bed process heaterDORR OLIVER INC·Filed 1976·Granted Jun 27, 1978·33 cites·11 claims
- 1782US5252041AAutomatic control system for diaphragm pumpsDORR OLIVER INC·Filed 1992·Granted Oct 12, 1993·64 cites·9 claims
- 1882US4017388ASplit treatment phosphorus removal from wasteDORR OLIVER INC·Filed 1973·Granted Apr 12, 1977·22 cites·1 claims
- 1982US3967778ACentrifugal separatorDORR OLIVER INC·Filed 1975·Granted Jul 6, 1976·53 cites·3 claims
- 2081US4054514ASedimentation apparatus with flocculating feed wellDORR OLIVER INC·Filed 1975·Granted Oct 18, 1977·64 cites·21 claims
- 2180US4569739AElectrofilter using an improved electrode assemblyDORR OLIVER INC·Filed 1984·Granted Feb 11, 1986·26 cites·19 claims
- 2280US4207158AElectrically augmented vacuum filtrationDORR OLIVER INC·Filed 1979·Granted Jun 10, 1980·35 cites·7 claims
- 2379US4544542AMethod for oxidation of flue gas desulfurization absorbent and the product produced therebyDORR OLIVER INC·Filed 1984·Granted Oct 1, 1985·39 cites·19 claims
- 2479US4170529ASystem and method for electric dewatering of solids suspensionDORR OLIVER INC·Filed 1978·Granted Oct 9, 1979·34 cites·11 claims
- 2579US4067494ANozzle type centrifugal machine with improved slurry pumping chambersDORR OLIVER INC·Filed 1977·Granted Jan 10, 1978·47 cites·21 claims
- 2679US3989628ADegritting and fiber removal systemDORR OLIVER INC·Filed 1975·Granted Nov 2, 1976·32 cites·3 claims
- 2778US4800017AFlotation mechanismDORR OLIVER INC·Filed 1987·Granted Jan 24, 1989·47 cites·5 claims
- 2878US4614588AMethod for sulfide toxicity reductionDORR OLIVER INC·Filed 1985·Granted Sep 30, 1986·25 cites·4 claims
- 2978US4018267ACleaning heat exchanger tubesDORR OLIVER INC·Filed 1975·Granted Apr 19, 1977·37 cites·6 claims
- 3077US4602989AMethod and apparatus for determining the zeta potential of colloidal particlesDORR OLIVER INC·Filed 1985·Granted Jul 29, 1986·38 cites·46 claims
- 3176US5205926AFroth flotation machineDORR OLIVER INC·Filed 1992·Granted Apr 27, 1993·41 cites·8 claims
- 3274US4276169ADrainage deck assembly for rotary vacuum drum filterDORR OLIVER INC·Filed 1980·Granted Jun 30, 1981·37 cites·8 claims
- 3374US4005817ANozzle type centrifugeDORR OLIVER INC·Filed 1975·Granted Feb 1, 1977·36 cites·24 claims
- 3472US3983927AHeat exchanger for fluidized bed reactorDORR OLIVER INC·Filed 1975·Granted Oct 5, 1976·27 cites·8 claims
- 3571US4314967AFluidized bed reactor with vertical cooling coilsDORR OLIVER INC·Filed 1980·Granted Feb 9, 1982·30 cites·5 claims
- 3670US5198035ACorn wet milling process for manufacturing starchDORR OLIVER INC·Filed 1991·Granted Mar 30, 1993·28 cites·8 claims
- 3770US4207118ACorn wet milling system and process for manufacturing starchDORR OLIVER INC·Filed 1978·Granted Jun 10, 1980·21 cites·5 claims
- 3870US4168222AElectrically augmented vacuum filtrationDORR OLIVER INC·Filed 1978·Granted Sep 18, 1979·26 cites·18 claims
- 3970US3998929AFluidized bed processDORR OLIVER INC·Filed 1972·Granted Dec 21, 1976·18 cites·7 claims
- 4069US4726902ACyclone degritter for solids liquids separationDORR OLIVER INC·Filed 1987·Granted Feb 23, 1988·35 cites·11 claims
- 4169US4679439AMethod and apparatus for measuring the unsteady sedimentation potential of colloidal particlesDORR OLIVER INC·Filed 1985·Granted Jul 14, 1987·27 cites·25 claims
- 4269US4039348ATreatment of raw sugar juiceDORR OLIVER INC·Filed 1975·Granted Aug 2, 1977·14 cites·6 claims
- 4366US4681685AMethod and apparatus for concentrating bioparticlesDORR OLIVER INC·Filed 1985·Granted Jul 21, 1987·32 cites·14 claims
- 4466US4331507ADesilication in alkaline pulp processesDORR OLIVER INC·Filed 1980·Granted May 25, 1982·19 cites·4 claims
- 4566US4102277AIncineration of lime-conditioned sewage sludge with high sulfur fuelDORR OLIVER INC·Filed 1977·Granted Jul 25, 1978·27 cites·9 claims
- 4665US4263137AApparatus and method for the gravity settling of suspended solidsDORR OLIVER INC·Filed 1979·Granted Apr 21, 1981·20 cites·32 claims
- 4765US4106210ASolids discharge system with cooling means for pressurized fluid bed reactorsDORR OLIVER INC·Filed 1977·Granted Aug 15, 1978·16 cites·8 claims
- 4865US4017402ASedimentation tank having a rotary rake structureDORR OLIVER INC·Filed 1975·Granted Apr 12, 1977·23 cites·16 claims
- 4965US3984319AMembrane separation equipmentDORR OLIVER INC·Filed 1975·Granted Oct 5, 1976·24 cites·3 claims
- 5064US5282575AHigh pressure screen showerDORR OLIVER INC·Filed 1992·Granted Feb 1, 1994·30 cites·10 claims
Showing the top 50 of 139 patent records by PatentIndex Score.
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