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Frans H. Tuovinen
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Ulvila, FI
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Patents Grants
last 30 patents
Information
Patent Grant
Method for utilizing smelter waste containing zinc and other valuab...
Patent number
5,411,572
Issue date
May 2, 1995
Outokumpu Research Oy
Frans H. Tuovinen
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for mixing molten iron silicate with ferroalloy slag in orde...
Patent number
4,946,811
Issue date
Aug 7, 1990
Outokumpu Oy
Frans H. Tuovinen
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for utilizing slag from ferroalloy production
Patent number
4,818,290
Issue date
Apr 4, 1989
Outokumpu Oy
Frans H. Tuovinen
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for exploitation of low grade oxidic and iron-bearing compl...
Patent number
4,740,239
Issue date
Apr 26, 1988
Outokumpu Oy
Frans H. Tuovinen
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for manufacturing heat-resistant and/or fire-r...
Patent number
4,650,510
Issue date
Mar 17, 1987
Outokumpu Oy
Frans H. Tuovinen
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for the purification of gases which contain so...
Patent number
4,469,493
Issue date
Sep 4, 1984
Outokumpu Oy
Frans H. Tuovinen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device for moving solid material fed onto the surface of a melt and...
Patent number
4,464,764
Issue date
Aug 7, 1984
Outokumpu Oy
Frans H. Tuovinen
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Method and device providing mobility to a contact shoe independent...
Patent number
4,458,352
Issue date
Jul 3, 1984
Outokumpu Oy
Frans H. Tuovinen
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of mixing a hot furnace gas with another gas before the remo...
Patent number
4,443,878
Issue date
Apr 17, 1984
Outokumpu Oy
Frans H. Tuovinen
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Brickwork construction
Patent number
4,424,959
Issue date
Jan 10, 1984
Outokumpu Oy
Frans H. Tuovinen
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Process for the production of an iron-free chronium (III) compound
Patent number
4,393,029
Issue date
Jul 12, 1983
Outokumpu Oy
Seppo O. Heimala
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of activated carbon from a moist organic...
Patent number
4,313,849
Issue date
Feb 2, 1982
Outokumpu Oy
Frans H. Tuovinen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for a sulfidizing pretreatment of the slag of pyrometallurg...
Patent number
4,304,596
Issue date
Dec 8, 1981
Outokumpu Oy
Simo A. I. Makipirtti
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for coating an electrically nonconductive material with metal
Patent number
4,284,665
Issue date
Aug 18, 1981
Outokumpu Oy
Seppo O. Heimala
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ferrochromium slag for uses requiring refractoriness and mechanical...
Patent number
4,222,786
Issue date
Sep 16, 1980
Outokumpu Oy
Frans H. Tuovinen
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method of refining of melts by means of a pulverous solid material...
Patent number
4,211,553
Issue date
Jul 8, 1980
Outokumpu Oy
Matti E. Honkaniemi
C21 - METALLURGY OF IRON