Assignee
OUTOKUMPU OY
FI·404 granted patents·18 pending applications·4,819 citations·filing 1973–2021
Top patents by PatentIndex Score
422 records- 0193US3937217AIntrauterine contraceptive deviceOUTOKUMPU OY·Filed 1974·Granted Feb 10, 1976·272 cites·5 claims
- 0292US6997371B2Thermal spray application of brazing material for manufacture of heat transfer devicesOUTOKUMPU OY·Filed 2005·Granted Feb 14, 2006·35 cites·21 claims
- 0392US5185081AMethod and apparatus for mixing and separating two liquid phases while preventing aeration and emulsions using a mixer-settlerOUTOKUMPU OY·Filed 1991·Granted Feb 9, 1993·95 cites·10 claims
- 0492US4648973AWay to oxidize sludge with high solid matter contentOUTOKUMPU OY·Filed 1984·Granted Mar 10, 1987·71 cites·3 claims
- 0591US7758707B2Martensitic stainless steel and method of the manufactureOUTOKUMPU OY·Filed 2006·Granted Jul 20, 2010·20 cites·6 claims
- 0690US4908058AMethod and apparatus for reducing dust accretions while treating gases in a smelting furnaceOUTOKUMPU OY·Filed 1987·Granted Mar 13, 1990·29 cites·11 claims
- 0789US4002544AHydrometallurgical process for the recovery of valuable components from the anode slime produced in the electrolytical refining of copperOUTOKUMPU OY·Filed 1975·Granted Jan 11, 1977·36 cites·5 claims
- 0888US6007600AMethod for producing copper in hydrometallurgical processOUTOKUMPU OY·Filed 1998·Granted Dec 28, 1999·43 cites·16 claims
- 0988US4548765AMethod for dispersing gas in a solid-containing liquid, and an apparatus for itOUTOKUMPU OY·Filed 1983·Granted Oct 22, 1985·58 cites·10 claims
- 1087US11967727B2Method for manufacturing a crash frame of a battery compartment for battery electric vehiclesOUTOKUMPU OY·Filed 2019·Granted Apr 23, 2024·6 cites·16 claims
- 1187US5039400AFlotation machineOUTOKUMPU OY·Filed 1990·Granted Aug 13, 1991·82 cites·15 claims
- 1287US4612113ARepeating flotation machineOUTOKUMPU OY·Filed 1984·Granted Sep 16, 1986·45 cites·12 claims
- 1386US7118719B2Method for the hydrolytic precipitation of ironOUTOKUMPU OY·Filed 2001·Granted Oct 10, 2006·19 cites·10 claims
- 1486US4431501AApparatus for electrolytic polishingOUTOKUMPU OY·Filed 1981·Granted Feb 14, 1984·42 cites·3 claims
- 1585US11932926B2Duplex ferritic austenitic stainless steel compositionOUTOKUMPU OY·Filed 2015·Granted Mar 19, 2024·2 cites·15 claims
- 1685US5133801AMethod and apparatus for feeding reacting substances into a smelting furnaceOUTOKUMPU OY·Filed 1991·Granted Jul 28, 1992·27 cites·6 claims
- 1785US4469493AMethod and apparatus for the purification of gases which contain solid and gaseous impuritiesOUTOKUMPU OY·Filed 1982·Granted Sep 4, 1984·66 cites·3 claims
- 1885US4211553AMethod of refining of melts by means of a pulverous solid material and/or a gasOUTOKUMPU OY·Filed 1978·Granted Jul 8, 1980·13 cites·6 claims
- 1984US11692253B2Duplex stainless steelOUTOKUMPU OY·Filed 2015·Granted Jul 4, 2023·2 cites·12 claims
- 2084US4259106AProcess for the roasting and chlorination of finely-divided iron ores and concentrates containing non-ferrous metalsOUTOKUMPU OY·Filed 1979·Granted Mar 31, 1981·23 cites·7 claims
- 2183US11870048B2Thermal systems for battery electric vehiclesOUTOKUMPU OY·Filed 2019·Granted Jan 9, 2024·1 cites·15 claims
- 2283US11247252B2Method for manufacturing a component of austenitic TWIP or TRIP/TWIP steelOUTOKUMPU OY·Filed 2016·Granted Feb 15, 2022·3 cites·13 claims
- 2383US5378294ACopper alloys to be used as brazing filler metalsOUTOKUMPU OY·Filed 1993·Granted Jan 3, 1995·52 cites·5 claims
- 2483US4323541ASelective two stage leaching of nickel from nickel-copper matteOUTOKUMPU OY·Filed 1980·Granted Apr 6, 1982·32 cites·9 claims
- 2583US4127235AProcess for producing pulverous selenium from raw seleniumOUTOKUMPU OY·Filed 1977·Granted Nov 28, 1978·37 cites·6 claims
- 2682US6911176B2Cooling elementOUTOKUMPU OY·Filed 2001·Granted Jun 28, 2005·14 cites·12 claims
- 2782US6666629B2Process for conveying granular solidsOUTOKUMPU OY·Filed 2002·Granted Dec 23, 2003·20 cites·3 claims
- 2882US4818290AMethod for utilizing slag from ferroalloy productionOUTOKUMPU OY·Filed 1987·Granted Apr 4, 1989·29 cites·6 claims
- 2982US4412451AMethod and apparatus for the determination of the average particle size in a slurryOUTOKUMPU OY·Filed 1982·Granted Nov 1, 1983·59 cites·7 claims
- 3082US4392885AMethod and apparatus for forming a directioned suspension spray of a pulverous material and a reaction gasOUTOKUMPU OY·Filed 1981·Granted Jul 12, 1983·20 cites·9 claims
- 3182US4278885AApparatus for measuring the concentrations of elements in a material by the capture gamma methodOUTOKUMPU OY·Filed 1979·Granted Jul 14, 1981·45 cites·16 claims
- 3282US4219354AHydrometallurgical process for the treatment of oxides and ferrites which contain iron and other metalsOUTOKUMPU OY·Filed 1978·Granted Aug 26, 1980·21 cites·8 claims
- 3382US4139371AProcess and device for suspension smelting of finely divided oxide and/or sulfide ores and concentrates, especially copper and/or nickel concentrates rich in ironOUTOKUMPU OY·Filed 1976·Granted Feb 13, 1979·23 cites·4 claims
- 3481US6821405B1Device for conveying electrodes used in the electrolytic refining or electrowinning of metalsOUTOKUMPU OY·Filed 2000·Granted Nov 23, 2004·16 cites·13 claims
- 3581US6565799B1Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnaceOUTOKUMPU OY·Filed 2000·Granted May 20, 2003·15 cites·13 claims
- 3681US3996127ADevice for detaching an electrolytically precipitated metal sheet from a cathodeOUTOKUMPU OY·Filed 1975·Granted Dec 7, 1976·24 cites·1 claims
- 3780US6342136B1Busbar construction for electrolytic cellOUTOKUMPU OY·Filed 1999·Granted Jan 29, 2002·39 cites·11 claims
- 3880US3959437AHydrometallurgical process for the recovery of zinc, copper and cadmium from their ferritesOUTOKUMPU OY·Filed 1974·Granted May 25, 1976·24 cites·11 claims
- 3979US4331087AMethod and apparatus for forming a turbulent suspension spray from a pulverous material and reaction gasOUTOKUMPU OY·Filed 1979·Granted May 25, 1982·20 cites·7 claims
- 4078US6761749B1Method for the production of blister copper in suspension reactorOUTOKUMPU OY·Filed 2000·Granted Jul 13, 2004·14 cites·12 claims
- 4178US6495024B1Method for the removal of arsenic from sulfuric acid solutionOUTOKUMPU OY·Filed 2000·Granted Dec 17, 2002·12 cites·6 claims
- 4278US5188808AMethod for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquidOUTOKUMPU OY·Filed 1991·Granted Feb 23, 1993·52 cites·6 claims
- 4378US4708640AApparatus for batch preparation and feeding into the smelting processOUTOKUMPU OY·Filed 1986·Granted Nov 24, 1987·14 cites·16 claims
- 4478US4169725AProcess for the refining of sulfidic complex and mixed ores or concentratesOUTOKUMPU OY·Filed 1978·Granted Oct 2, 1979·18 cites·7 claims
- 4577US6929677B2Method for leaching copper concentrateOUTOKUMPU OY·Filed 2001·Granted Aug 16, 2005·11 cites·10 claims
- 4677US6892559B2Method and apparatus for manufacturing tubesOUTOKUMPU OY·Filed 2001·Granted May 17, 2005·9 cites·25 claims
- 4777US6755890B1Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnaceOUTOKUMPU OY·Filed 2000·Granted Jun 29, 2004·11 cites·12 claims
- 4877US6264041B1Adjustable splitter assembly for spiral separatorOUTOKUMPU OY·Filed 2000·Granted Jul 24, 2001·20 cites·20 claims
- 4977US4038162AMethod and apparatus for detecting and eliminating short-circuits in an electrolytic tankOUTOKUMPU OY·Filed 1976·Granted Jul 26, 1977·21 cites·11 claims
- 5076US4894129AMethod and apparatus for positioning sheet-like objectsOUTOKUMPU OY·Filed 1988·Granted Jan 16, 1990·30 cites·8 claims
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