TREA

Joseph M. Sierakoski

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  • Tucson, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solvent extraction process for recovery of zinc
    • Patent number 4,563,256
    • Issue date Jan 7, 1986
    • Henkel Corporation
    • R. Brantley Sudderth
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Solvent extraction
    • Patent number 4,507,268
    • Issue date Mar 26, 1985
    • Henkel Corporation
    • Gary A. Kordosky
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...