TREA

John A. Persson

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  • Gibsonia, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arc furnace electrode control
    • Patent number 4,620,308
    • Issue date Oct 28, 1986
    • Lectromelt Corporation
    • John A. Persson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Iron free self baking electrode
    • Patent number 4,575,856
    • Issue date Mar 11, 1986
    • Pennsylvania Engineering Corporation
    • John A. Persson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for reducing ore
    • Patent number 4,490,169
    • Issue date Dec 25, 1984
    • Lectromelt Corporation
    • John A. Persson
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Water-cooled electrode
    • Patent number 4,490,825
    • Issue date Dec 25, 1984
    • Lectromelt Corporation
    • John A. Persson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Arc furnace for producing aluminum
    • Patent number 4,447,906
    • Issue date May 8, 1984
    • Lectromelt Corporation
    • John A. Persson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of producing aluminum
    • Patent number 4,385,930
    • Issue date May 31, 1983
    • Reynolds Metals Co.
    • John A. Persson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Lead smelting method
    • Patent number 4,353,738
    • Issue date Oct 12, 1982
    • Lectromelt Corporation
    • John A. Persson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Electrode contact assembly
    • Patent number 4,326,093
    • Issue date Apr 20, 1982
    • Lectromelt Corporation
    • John A. Persson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Apparatus for reducing ore
    • Patent number 4,307,872
    • Issue date Dec 29, 1981
    • Lectromelt Corporation
    • John A. Persson
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Method of producing cement
    • Patent number 4,289,537
    • Issue date Sep 15, 1981
    • Lectromelt Corporation
    • Howard F. Davis
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Method for producing cement clinker from cement kiln waste dust
    • Patent number 4,249,952
    • Issue date Feb 10, 1981
    • Pennsylvania Engineering Corporation
    • Howard F. Davis
    • C05 - FERTILISERS MANUFACTURE THEREOF
  • Information Patent Grant

    Bus bar assembly
    • Patent number 4,153,812
    • Issue date May 8, 1979
    • Lectromelt Corporation
    • John A. Persson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR