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Friedrich-Hans Grandin

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  • Ratingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making steel
    • Patent number 5,833,735
    • Issue date Nov 10, 1998
    • Maschinenfabrik Koppern GmbH & Co. KG
    • Friedrich-Hans Grandin
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Steel making process including transporting spong iron briquettes
    • Patent number 5,376,161
    • Issue date Dec 27, 1994
    • Maschinenfabrik Koppern GmbH & Co. KG
    • Hans-Georg Bergendahl
    • C21 - METALLURGY OF IRON