TREA

John A. Stephens

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  • Tucson, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sulfidization reaction
    • Patent number 4,073,479
    • Issue date Feb 14, 1978
    • The Anaconda Company
    • Martin C. Kuhn
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Sulfidization reaction
    • Patent number 4,008,072
    • Issue date Feb 15, 1977
    • The Anaconda Company
    • Martin C. Kuhn
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...