Assignee
OUTOTEC OYJ
FI111 patents
Top patents by PatentIndex Score
US7731853B2Jun 8, 2010
Method and equipment for purifying an extraction solution from aqueous entrainment and impurities
OUTOTEC OYJ22 citations91
US7670575B2Mar 2, 2010
Method and device for treating anode slime
OUTOTEC OYJ23 citations89
US7235182B2Jun 26, 2007
Pulp stabilisation apparatus for a thickener
OUTOTEC OYJ20 citations89
US7294319B2Nov 13, 2007
Method for precipitating iron from a zinc sulphate solution as hematite
OUTOTEC OYJ23 citations88
US7517461B2Apr 14, 2009
Method and equipment to control separation of a dispersion liquid-liquid extraction
OUTOTEC OYJ13 citations83
US7390420B2Jun 24, 2008
Method and equipment for compressing a dispersion in liquid-liquid extraction
OUTOTEC OYJ16 citations83
US7390468B2Jun 24, 2008
Extraction process
OUTOTEC OYJ18 citations83
US7980824B2Jul 19, 2011
Rotor for a flotation machine
OUTOTEC OYJ7 citations82
US7625422B2Dec 1, 2009
Method and plant for the heat treatment of solids containing iron oxide using a fluidized bed reactor
OUTOTEC OYJ9 citations82
US8043597B2Oct 25, 2011
Process and apparatus for the combustion of sulfur
OUTOTEC OYJ9 citations81
US7789332B2Sep 7, 2010
Method for controlling oxygen when separating minerals from a slurry
OUTOTEC OYJ8 citations80
US7591946B2Sep 22, 2009
Dual zone feedwell for a thickener
OUTOTEC OYJ12 citations80
US7520995B2Apr 21, 2009
Dilution apparatus for a thickener
OUTOTEC OYJ11 citations80
US7981299B2Jul 19, 2011
Thickener and method for thickening
OUTOTEC OYJ14 citations78
US7624877B2Dec 1, 2009
Separate size flotation device
OUTOTEC OYJ9 citations77
US7803268B2Sep 28, 2010
Method and plant for producing low-temperature coke
OUTOTEC OYJ7 citations74
US7632334B2Dec 15, 2009
Method and plant for the heat treatment of solids containing iron oxide
OUTOTEC OYJ7 citations74
US7837970B2Nov 23, 2010
Process and plant for the production of sulphuric acid
OUTOTEC OYJ7 citations72
US7700035B2Apr 20, 2010
Direct smelting plant and process
OUTOTEC OYJ7 citations72
US7597786B2Oct 6, 2009
Transfer and insulation device for electrolysis
OUTOTEC OYJ7 citations72
US7566017B2Jul 28, 2009
Apparatus for discharging material from a mill
OUTOTEC OYJ15 citations70
US7794685B2Sep 14, 2010
Method for producing hydrogen and sulphuric acid
OUTOTEC OYJ7 citations69
US7699249B2Apr 20, 2010
Method for defining the degree of fullness in a mill
OUTOTEC OYJ9 citations69
US9829250B2Nov 28, 2017
Fluid cooled lances for top submerged injection
OUTOTEC OYJ5 citations67
US7308929B2Dec 18, 2007
Aluminum ingot casting machine
OUTOTEC OYJ5 citations66
US8020710B2Sep 20, 2011
Method and equipment for liquid-liquid extraction
OUTOTEC OYJ2 citations62
US7749302B2Jul 6, 2010
Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals
OUTOTEC OYJ3 citations62
US7704398B2Apr 27, 2010
Method and apparatus for purification of an aqueous solution from droplets of extraction solution
OUTOTEC OYJ3 citations62
US7695625B2Apr 13, 2010
Method and apparatus for purification of slightly water-soluble organic solution from aqueous entrainment
OUTOTEC OYJ4 citations62
US7678275B2Mar 16, 2010
Method and equipment for liquid-liquid extraction
OUTOTEC OYJ4 citations62
US7547348B2Jun 16, 2009
Method for the recovery of metals using chloride leaching and extraction
OUTOTEC OYJ2 citations62
US7465402B2Dec 16, 2008
Method and equipment for guiding dispersion in liquid-liquid extraction
OUTOTEC OYJ6 citations62
US7677860B2Mar 16, 2010
Method and apparatus for transferring sheet-like objects
OUTOTEC OYJ4 citations61
US7662351B2Feb 16, 2010
Process and plant for producing metal oxide from metal compounds
OUTOTEC OYJ4 citations61
US7393496B2Jul 1, 2008
Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace
OUTOTEC OYJ2 citations61
US8360245B2Jan 29, 2013
Equipment and method for flotating and classifying mineral slurry
OUTOTEC OYJ3 citations60
US7997414B2Aug 16, 2011
Method for separating particles in hydrous slurry and a hindered-bed separator
OUTOTEC OYJ5 citations60
US7854608B2Dec 21, 2010
Method and apparatus for heat treatment in a fluidized bed
OUTOTEC OYJ4 citations60
US7691360B2Apr 6, 2010
Process and plant for the manufacture of sulphuric acid from gases rich in sulphur dioxide
OUTOTEC OYJ6 citations60
US7651547B2Jan 26, 2010
Fluidized bed method and plant for the heat treatment of solids containing titanium
OUTOTEC OYJ5 citations60
US7366582B2Apr 29, 2008
Method for defining status index in copper electrolysis
OUTOTEC OYJ2 citations60
US7296686B2Nov 20, 2007
Directional nozzle for a spiral separator
OUTOTEC OYJ2 citations60
US9957586B2May 1, 2018
Method of using a suspension smelting furnace, a suspension smelting furnace, and a concentrate burner
OUTOTEC OYJ1 citations59
US8038766B2Oct 18, 2011
Direct reduction process using a single fluidised bed
OUTOTEC OYJ2 citations59
US7820134B2Oct 26, 2010
Process and plant for producing sulfuric acid
OUTOTEC OYJ4 citations59
US7537376B2May 26, 2009
Device for a continuously operated diluting of a slurry sample
OUTOTEC OYJ6 citations59
US7510593B2Mar 31, 2009
Method for producing concentrates
OUTOTEC OYJ3 citations59
US7811534B2Oct 12, 2010
Method for the treatment of copper-bearing materials
OUTOTEC OYJ2 citations58
US7547367B2Jun 16, 2009
Method for producing magnetically active shape memory metal alloy
OUTOTEC OYJ4 citations58
US8801940B2Aug 12, 2014
Feedwells
OUTOTEC OYJ2 citations57
Showing the top 50 of 111 patents by PatentIndex Score.