TREA

Josef F. Drs

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  • Vienna, AT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cement spraying admixture
    • Patent number 5,911,819
    • Issue date Jun 15, 1999
    • MBT Holding AG
    • Josef Franz Drs
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Fluidity control of cementitious compositions
    • Patent number 5,753,037
    • Issue date May 19, 1998
    • MBT Holding AG
    • Josef Franz Drs
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Workable cementitious compositions
    • Patent number 5,609,681
    • Issue date Mar 11, 1997
    • Sandoz Ltd.
    • Josef F. Drs
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Workable cementitious compositions
    • Patent number 5,494,516
    • Issue date Feb 27, 1996
    • Sandoz Ltd.
    • Josef F. Drs
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Shotcrete compositions
    • Patent number 5,413,819
    • Issue date May 9, 1995
    • Sandoz Ltd.
    • Josef F. Drs
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Concrete spraying process
    • Patent number 5,356,671
    • Issue date Oct 18, 1994
    • Sandoz Ltd.
    • Josef F. Drs
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES