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Ralph Weber
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Rio de Janeiro, BR
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last 30 patents
Information
Patent Grant
Top injection lance
Patent number
6,245,285
Issue date
Jun 12, 2001
Technological Resources Pty. Ltd.
Rodney J. Dry
C21 - METALLURGY OF IRON
Information
Patent Grant
Reducing and smelting furnace having filter layer
Patent number
5,571,475
Issue date
Nov 5, 1996
Kortec AG
Ralph Weber
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for protecting an injection device disposed in...
Patent number
5,403,378
Issue date
Apr 4, 1995
Kortec AG
William Wells
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for the production of liquid metal from fine-grain metal ox...
Patent number
5,364,448
Issue date
Nov 15, 1994
Kortec AG
Ralph Weber
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging arrangement for shaft furnaces, in particular blast furnaces
Patent number
4,949,940
Issue date
Aug 21, 1990
Kortec AG
Ralph Weber
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for feeding heat energy into a molten metal bath
Patent number
4,881,972
Issue date
Nov 21, 1989
Kortec AG
Ralph G. Weber
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging material preheater for preheating charging material for a...
Patent number
4,852,858
Issue date
Aug 1, 1989
Kortec AG
Ralph Weber
C21 - METALLURGY OF IRON
Information
Patent Grant
Closure apparatus for a tap hole
Patent number
4,736,930
Issue date
Apr 12, 1988
Kortec AG
Ralph Weber
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Installation including a heating furnace for continuous castings, w...
Patent number
4,586,897
Issue date
May 6, 1986
Kortec AG
Ralph Weber
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...