Assignee
OUTOKUMPU OY
FI404 patents
Top patents by PatentIndex Score
US5185081AFeb 9, 1993
Method and apparatus for mixing and separating two liquid phases while preventing aeration and emulsions using a mixer-settler
OUTOKUMPU OY95 citations96
US4648973AMar 10, 1987
Way to oxidize sludge with high solid matter content
OUTOKUMPU OY71 citations96
US4548765AOct 22, 1985
Method for dispersing gas in a solid-containing liquid, and an apparatus for it
OUTOKUMPU OY58 citations96
US3937217AFeb 10, 1976
Intrauterine contraceptive device
OUTOKUMPU OY272 citations93
US6007600ADec 28, 1999
Method for producing copper in hydrometallurgical process
OUTOKUMPU OY43 citations92
US5248485ASep 28, 1993
Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid
OUTOKUMPU OY21 citations92
US5188808AFeb 23, 1993
Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid
OUTOKUMPU OY52 citations92
US5182087AJan 26, 1993
Method for mixing two liquids or liquid and solid material together, and for simultaneously separating another liquid or solid from the liquid
OUTOKUMPU OY40 citations92
US4818290AApr 4, 1989
Method for utilizing slag from ferroalloy production
OUTOKUMPU OY29 citations92
US4628391ADec 9, 1986
Method for dispersing two phases in liquid-liquid extraction
OUTOKUMPU OY32 citations92
US6953123B2Oct 11, 2005
Pre-separation of feed material for hindered-bed separator
OUTOKUMPU OY21 citations91
US6267900B1Jul 31, 2001
Method and apparatus for adjusting the boundary surface between two controllably flowing and mutually separable and for conducting both solutions out of the separation part
OUTOKUMPU OY22 citations91
US6264041B1Jul 24, 2001
Adjustable splitter assembly for spiral separator
OUTOKUMPU OY20 citations91
US5378294AJan 3, 1995
Copper alloys to be used as brazing filler metals
OUTOKUMPU OY52 citations91
US5240327AAug 31, 1993
Method for creating double loop flow
OUTOKUMPU OY28 citations91
US7118719B2Oct 10, 2006
Method for the hydrolytic precipitation of iron
OUTOKUMPU OY19 citations90
US6997371B2Feb 14, 2006
Thermal spray application of brazing material for manufacture of heat transfer devices
OUTOKUMPU OY35 citations90
US6530514B2Mar 11, 2003
Method of manufacturing heat transfer tubes
OUTOKUMPU OY19 citations90
US6342136B1Jan 29, 2002
Busbar construction for electrolytic cell
OUTOKUMPU OY39 citations90
US5108495AApr 28, 1992
Method controlling a process by impedance analysis
OUTOKUMPU OY25 citations90
US4469493ASep 4, 1984
Method and apparatus for the purification of gases which contain solid and gaseous impurities
OUTOKUMPU OY66 citations90
US6797908B2Sep 28, 2004
High-tension electrostatic classifier and separator, and associated method
OUTOKUMPU OY21 citations89
US6666629B2Dec 23, 2003
Process for conveying granular solids
OUTOKUMPU OY20 citations89
US5121105AJun 9, 1992
Metal detector
OUTOKUMPU OY45 citations89
US5078505AJan 7, 1992
Apparatus for creating a double loop flow
OUTOKUMPU OY37 citations89
US4612113ASep 16, 1986
Repeating flotation machine
OUTOKUMPU OY45 citations89
US6340450B1Jan 22, 2002
Method for leaching zinc concentrate in atmospheric conditions
OUTOKUMPU OY21 citations88
US5039400AAug 13, 1991
Flotation machine
OUTOKUMPU OY82 citations88
US4412451ANov 1, 1983
Method and apparatus for the determination of the average particle size in a slurry
OUTOKUMPU OY59 citations88
US4818289AApr 4, 1989
Method for utilizing slag from metal production
OUTOKUMPU OY30 citations87
US7758707B2Jul 20, 2010
Martensitic stainless steel and method of the manufacture
OUTOKUMPU OY20 citations86
US6284136B1Sep 4, 2001
Apparatus for cleaning a filter surface
OUTOKUMPU OY17 citations86
US6217782B1Apr 17, 2001
Combined ultrasonic cleaning and washing of filter disks
OUTOKUMPU OY24 citations86
US5176810AJan 5, 1993
Method for producing metal powders
OUTOKUMPU OY28 citations86
US5133801AJul 28, 1992
Method and apparatus for feeding reacting substances into a smelting furnace
OUTOKUMPU OY27 citations86
US5039347AAug 13, 1991
Method for cleaning the filter plates of a suction drier
OUTOKUMPU OY39 citations86
US4908058AMar 13, 1990
Method and apparatus for reducing dust accretions while treating gases in a smelting furnace
OUTOKUMPU OY29 citations86
US4894129AJan 16, 1990
Method and apparatus for positioning sheet-like objects
OUTOKUMPU OY30 citations85
US4894619AJan 16, 1990
Impulse induced eddy current type detector using plural measuring sequences in detecting metal objects
OUTOKUMPU OY37 citations85
US4431501AFeb 14, 1984
Apparatus for electrolytic polishing
OUTOKUMPU OY42 citations85
US4278885AJul 14, 1981
Apparatus for measuring the concentrations of elements in a material by the capture gamma method
OUTOKUMPU OY45 citations85
US6238457B1May 29, 2001
Method for feeding and directing reaction gas and solids into a smelting furnace and a multiadjustable burner designed for said purpose
OUTOKUMPU OY42 citations84
US5102452AApr 7, 1992
Method for the treatment and production of free-flowing wc-ni-co powders
OUTOKUMPU OY42 citations84
US4605898AAug 12, 1986
Pulse field metal detector with spaced, dual coil transmitter and receiver systems
OUTOKUMPU OY34 citations84
US4127235ANov 28, 1978
Process for producing pulverous selenium from raw selenium
OUTOKUMPU OY37 citations84
US6911176B2Jun 28, 2005
Cooling element
OUTOKUMPU OY14 citations83
US6821405B1Nov 23, 2004
Device for conveying electrodes used in the electrolytic refining or electrowinning of metals
OUTOKUMPU OY16 citations83
US6174123B1Jan 16, 2001
Gripping device for positioning sheet-like objects
OUTOKUMPU OY15 citations83
US5151006ASep 29, 1992
Automatic charging member
OUTOKUMPU OY22 citations83
US4323541AApr 6, 1982
Selective two stage leaching of nickel from nickel-copper matte
OUTOKUMPU OY32 citations83
Showing the top 50 of 404 patents by PatentIndex Score.