TREA

Hans-Joachim Koschlig

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  • Bochum, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oven door assembly
    • Patent number 4,917,772
    • Issue date Apr 17, 1990
    • Dr. C. Otto Feuerfest GmbH
    • Hans-Joachim Koschlig
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Silica brick and process for producing same
    • Patent number 4,866,015
    • Issue date Sep 12, 1989
    • Dr. C. Otto Feuerfest GmbH
    • Hans-Joachim Koschlig
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES