Assignee
NORANDA MINES LTD
49 granted patents·1,042 citations·filing 1974–1982
Top patents by PatentIndex Score
49 records- 0196US4039406ARecovering copper from concentrates with insoluble sulfate forming leachNORANDA MINES LTD·Filed 1976·Granted Aug 2, 1977·83 cites·18 claims
- 0295US4338168AHydrometallurgical treatment of copper-bearing hematite residueNORANDA MINES LTD·Filed 1981·Granted Jul 6, 1982·71 cites·4 claims
- 0393US4096437AMagnetic testing device for detecting loss of metallic area and internal and external defects in elongated objectsNORANDA MINES LTD·Filed 1976·Granted Jun 20, 1978·79 cites·14 claims
- 0487US4085016AMethod and apparatus for the oxidation of organic material present in concentrated sulfuric acidNORANDA MINES LTD·Filed 1976·Granted Apr 18, 1978·36 cites·13 claims
- 0584US4470907AContinuous polymer feed system for a waste water treatment plantNORANDA MINES LTD·Filed 1982·Granted Sep 11, 1984·72 cites·3 claims
- 0684US4466824ATransferred-arc plasma reactor for chemical and metallurgical applicationsNORANDA MINES LTD·Filed 1982·Granted Aug 21, 1984·44 cites·10 claims
- 0784US4047939ASlimes treatment processNORANDA MINES LTD·Filed 1975·Granted Sep 13, 1977·25 cites·11 claims
- 0883US4376010ASpray drying with a plasma of superheated steamNORANDA MINES LTD·Filed 1981·Granted Mar 8, 1983·52 cites·11 claims
- 0982US4059016AFroth level monitorNORANDA MINES LTD·Filed 1976·Granted Nov 22, 1977·33 cites·7 claims
- 1081US4212722AApparatus for electrowinning metal from metal bearing solutionsNORANDA MINES LTD·Filed 1978·Granted Jul 15, 1980·21 cites·9 claims
- 1180US4402359AHeat transfer device having an augmented wall surfaceNORANDA MINES LTD·Filed 1980·Granted Sep 6, 1983·41 cites·9 claims
- 1279US4223549AOxygen monitoring circuit with built in testing meansNORANDA MINES LTD·Filed 1979·Granted Sep 23, 1980·23 cites·10 claims
- 1378US4207147AElectrode for the electrolytic deposition of metalsNORANDA MINES LTD·Filed 1978·Granted Jun 10, 1980·24 cites·5 claims
- 1478US4015099AMethod of joining a copper contact button to the aluminum headbar of an electrode plateNORANDA MINES LTD·Filed 1975·Granted Mar 29, 1977·26 cites·3 claims
- 1576US4294274AHydrogen injection into gas pipelines and other pressurized containersNORANDA MINES LTD·Filed 1979·Granted Oct 13, 1981·25 cites·8 claims
- 1675US3941669AFluidized bed electrode systemNORANDA MINES LTD·Filed 1974·Granted Mar 2, 1976·19 cites·11 claims
- 1772US4194906AWear resistant low alloy white cast ironNORANDA MINES LTD·Filed 1978·Granted Mar 25, 1980·19 cites·6 claims
- 1871US4216575AMethod of reforming the fins of a finned tubeNORANDA MINES LTD·Filed 1979·Granted Aug 12, 1980·32 cites·6 claims
- 1970US4382778AMethod and apparatus for reducing excess air inleakage into an open ring-type carbon baking furnaceNORANDA MINES LTD·Filed 1981·Granted May 10, 1983·15 cites·9 claims
- 2069US3988418AHydrometallurgical production of technical grade molybdic oxide from molybdenite concentratesNORANDA MINES LTD·Filed 1975·Granted Oct 26, 1976·16 cites·21 claims
- 2167US4181699AApparatus for detecting the presence of a specific substance in a gas streamNORANDA MINES LTD·Filed 1978·Granted Jan 1, 1980·20 cites·12 claims
- 2267US4168970APurification of zinc sulphate solutionsNORANDA MINES LTD·Filed 1978·Granted Sep 25, 1979·19 cites·12 claims
- 2366US4005856AProcess for continuous smelting and converting of copper concentratesNORANDA MINES LTD·Filed 1975·Granted Feb 1, 1977·14 cites·26 claims
- 2465US4307609ALiquid density meterNORANDA MINES LTD·Filed 1980·Granted Dec 29, 1981·22 cites·8 claims
- 2564US4225402AMethod for heavy-water extraction from non-electrolytic hydrogen streams using a combined electrolysis and catalytic exchange systemNORANDA MINES LTD·Filed 1979·Granted Sep 30, 1980·12 cites·7 claims
- 2664US3973761AFurnace tapping apparatusNORANDA MINES LTD·Filed 1974·Granted Aug 10, 1976·14 cites·8 claims
- 2763US4141804AProcess for electrowinning metal from metal bearing solutionsNORANDA MINES LTD·Filed 1977·Granted Feb 27, 1979·11 cites·5 claims
- 2858US4281290AVoltage monitorNORANDA MINES LTD·Filed 1979·Granted Jul 28, 1981·15 cites·9 claims
- 2958US4115512AMethod for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extractionNORANDA MINES LTD·Filed 1976·Granted Sep 19, 1978·8 cites·12 claims
- 3054US4404022ADore slag treatmentNORANDA MINES LTD·Filed 1981·Granted Sep 13, 1983·19 cites·11 claims
- 3154US4132667ACorrosion inhibiting molybdate pigment and preparation thereofNORANDA MINES LTD·Filed 1977·Granted Jan 2, 1979·6 cites·23 claims
- 3253US4457897AProcess for the selective dissolution of cobalt from cobaltite-pyrite concentratesNORANDA MINES LTD·Filed 1982·Granted Jul 3, 1984·8 cites·12 claims
- 3351US4046323AProcess for controlled slow cooling of non-ferrous smelting slagsNORANDA MINES LTD·Filed 1976·Granted Sep 6, 1977·11 cites·13 claims
- 3451US4003814AApparatus for the continuous measurement of the oxygen content of molten copper or alloys thereofNORANDA MINES LTD·Filed 1975·Granted Jan 18, 1977·18 cites·12 claims
- 3551US3968696ADevice for taking samples of slurries or of any suspension of particulate material in liquid and for measuring desired chemical or physical properties of such samplesNORANDA MINES LTD·Filed 1975·Granted Jul 13, 1976·12 cites·20 claims
- 3649US4107025AStable electrode for electrochemical applicationsNORANDA MINES LTD·Filed 1977·Granted Aug 15, 1978·8 cites·9 claims
- 3747US4136567APulp density meterNORANDA MINES LTD·Filed 1976·Granted Jan 30, 1979·10 cites·6 claims
- 3847US4093780ATreatment of zinc surfaces to inhibit wet storage staining and products employed thereinNORANDA MINES LTD·Filed 1975·Granted Jun 6, 1978·4 cites·18 claims
- 3945US4146447AArsenic removal from electrolytesNORANDA MINES LTD·Filed 1977·Granted Mar 27, 1979·9 cites·20 claims
- 4044US3951773AFluidized bed electrode system utilizing embedded insulator auxiliary electrodeNORANDA MINES LTD·Filed 1974·Granted Apr 20, 1976·4 cites·4 claims
- 4140US4175426AApparatus for measuring the sedimentation characteristics of particulate solids in liquidNORANDA MINES LTD·Filed 1978·Granted Nov 27, 1979·7 cites·10 claims
- 4239US4039402AMethod for the operation of a fluidized bed electrochemical reactor at a substantially constant current densityNORANDA MINES LTD·Filed 1976·Granted Aug 2, 1977·5 cites·6 claims
- 4338US4054280ASpring box assembly for use in clamping mechanisms of the over-center typeNORANDA MINES LTD·Filed 1976·Granted Oct 18, 1977·11 cites·5 claims
- 4437US4124460AElectrowinning of copper in presence of high concentration of ironNORANDA MINES LTD·Filed 1977·Granted Nov 7, 1978·6 cites·15 claims
- 4535US4338128ALow alloy white cast ironNORANDA MINES LTD·Filed 1980·Granted Jul 6, 1982·5 cites·2 claims
- 4635US4114865ASilencer for use on tuyere punchersNORANDA MINES LTD·Filed 1977·Granted Sep 19, 1978·3 cites·8 claims
- 4724US4474656AMethod of controlling the potential of electrically-floating components of electrolyzer cellsNORANDA MINES LTD·Filed 1982·Granted Oct 2, 1984·1 cites·10 claims
- 4823US4019725AGas seal and silencer for use on tuyere bodyNORANDA MINES LTD·Filed 1975·Granted Apr 26, 1977·4 cites·9 claims
- 499US4462575AHood assembly for a metallurgical converterNORANDA MINES LTD·Filed 1982·Granted Jul 31, 1984·0 cites·6 claims
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