TREA

Richard Andre Kollar

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  • Douai, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Distillation column tray
    • Patent number 5,264,083
    • Issue date Nov 23, 1993
    • Metaleurop S.A.
    • Richard Kollar
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for preventing the oxidation of liquid zinc
    • Patent number 3,999,982
    • Issue date Dec 28, 1976
    • Societe Miniere et Metallurgique de Penarroya
    • Richard Andre Kollar
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...