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last 30 patents
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Patent Grant
Method and plant for producing iron from lumpy and fine-particulate...
Patent number
6,214,083
Issue date
Apr 10, 2001
Voest-Alpine Industrieanlagenbau GmbH
Horst Wiesinger
C21 - METALLURGY OF IRON
Information
Patent Grant
Plant and process for the production of pig iron and/or sponge iron
Patent number
6,183,534
Issue date
Feb 6, 2001
Voest-Alphine Industrieanlagenbau GmbH
Leopold Werner Kepplinger
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for the production of molten pig iron or molten steel, pre-...
Patent number
5,997,608
Issue date
Dec 7, 1999
Voest-Alpine Industrieanlagenbau GmbH
Jorg Diehl
C21 - METALLURGY OF IRON
Information
Patent Grant
Plant and process for the production of pig iron and/or sponge iron
Patent number
5,989,308
Issue date
Nov 23, 1999
Voest-Alpine Industriean-lagenbau GmbH
Leopold-Werner Kepplinger
C21 - METALLURGY OF IRON
Information
Patent Grant
Mill arrangement with temporary storage vessel and a process of ope...
Patent number
4,867,787
Issue date
Sep 19, 1989
Voest-Alpine Aktiengesellschaft
Othmar Puhringer
C21 - METALLURGY OF IRON
Information
Patent Grant
A mill arrangement and a process of operating the same using off ga...
Patent number
4,804,408
Issue date
Feb 14, 1989
Voest-Alpine Aktiengesellschaft
Othmar Puhringer
C21 - METALLURGY OF IRON