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Paul R. Ammann
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Boxford, MA, US
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last 30 patents
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Patent Grant
Pyrometallurgical oxidation of molybdenum rich matte
Patent number
4,334,924
Issue date
Jun 15, 1982
Kennecott Corporation
Jonathan J. Kim
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Mechanically stirred furnace for pyrometallurgical operations and p...
Patent number
4,060,409
Issue date
Nov 29, 1977
Kennecott Copper Corporation
Paul R. Ammann
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Pyrometallurgical process for smelting nickel and nickel-copper con...
Patent number
4,036,636
Issue date
Jul 19, 1977
Kennecott Copper Corporation
Paul R. Ammann
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Direct electrochemical recovery of copper from dilute ammoniacal so...
Patent number
4,028,202
Issue date
Jun 7, 1977
Kennecott Copper Corporation
Paul R. Ammann
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Direct electrochemical recovery of copper from dilute acidic solutions
Patent number
4,026,772
Issue date
May 31, 1977
Kennecott Copper Corporation
Paul R. Ammann
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Pyrometallurgical recovery of iron from iron silicate slags
Patent number
4,001,011
Issue date
Jan 4, 1977
Kennecott Copper Corporation
Jagdish C. Agarwal
C21 - METALLURGY OF IRON