Ralph Weber

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Sao Paulo, BR

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for directly making liquid pig-iron from coarse iron ore
- Patent number 4,448,402
- Issue date May 15, 1984
- Korf Engineering GmbH
- Ralph Weber
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for directly making liquid pig-iron from coarse iron ore
- Patent number 4,409,023
- Issue date Oct 11, 1983
- Korf-Stahl AG
- Ralph Weber
- C21 - METALLURGY OF IRON
Information Patent Grant
Metallurgical melting apparatus with a blow-nozzle or burner capabl...
- Patent number 4,392,637
- Issue date Jul 12, 1983
- Korf-Stahl AG
- Ralph Weber
- C21 - METALLURGY OF IRON
Information Patent Grant
Metallurgical melting and refining unit
- Patent number 4,389,043
- Issue date Jun 21, 1983
- Korf Industrie und Handel GmbH und Co KG
- Ralph Weber
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing liquid crude iron and reduction gas
- Patent number 4,317,677
- Issue date Mar 2, 1982
- Korf-Stahl AG.
- Ralph Weber
- C21 - METALLURGY OF IRON