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Hans Wilhelm Wieking

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  • Goslar, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus of refining crude cadmium
    • Patent number 4,077,799
    • Issue date Mar 7, 1978
    • Preussag Aktiengesellschaft Metall
    • Hans Wilhelm Wieking
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method and apparatus of refining crude cadmium
    • Patent number 4,010,937
    • Issue date Mar 8, 1977
    • Preussag Aktiengesellschaft Metall
    • Hans Wilhelm Wieking
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...