William A. Ahrendt

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Charlotte, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for selective reduction of metallic oxides
- Patent number 4,470,581
- Issue date Sep 11, 1984
- Midrex Corporation
- William A. Ahrendt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for selective reduction of metallic oxides
- Patent number 4,381,939
- Issue date May 3, 1983
- Midrex Corporation
- William A. Ahrendt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for direct reduction of iron using high sulfur gas
- Patent number 4,333,761
- Issue date Jun 8, 1982
- Midrex Corporation
- William A. Ahrendt
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for direct reduction of iron using high sulfur gas
- Patent number 4,270,739
- Issue date Jun 2, 1981
- Midrex Corporation
- William A. Ahrendt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of inhibiting rusting of sponge iron
- Patent number 4,069,015
- Issue date Jan 17, 1978
- Midrex Corporation
- William A. Ahrendt
- C21 - METALLURGY OF IRON