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last 30 patents
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Patent Grant
Method and arrangement for cooling hot bulk material
Patent number
6,048,381
Issue date
Apr 11, 2000
Voest-Alpine Industrieanlagenbau GmbH
Leopold Werner Kepplinger
C21 - METALLURGY OF IRON
Information
Patent Grant
Direct reduction process for iron oxide-containing materials
Patent number
5,855,643
Issue date
Jan 5, 1999
Voest-Alpine Industrieanlagenbau GmbH
Gerhard Cip
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for the direct reduction of particulate iron-containing mat...
Patent number
5,833,734
Issue date
Nov 10, 1998
Voest-Alpine Industrieanlagenbau GmbH
Gerhard Cip
C21 - METALLURGY OF IRON