TREA

Gerd Praus

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  • Krefeld, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Block-form cleaners for flush toilets
    • Patent number 5,759,974
    • Issue date Jun 2, 1998
    • Henkel Kommanditgesellschaft auf Aktien
    • Ronald Menke
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Cleaning block for flush toilet tanks
    • Patent number 4,820,449
    • Issue date Apr 11, 1989
    • Henkel Kommanditgesellschaft auf Aktien
    • Ronald Menke
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Two-component cleaner and disinfectant tablet
    • Patent number 4,683,072
    • Issue date Jul 28, 1987
    • Henkel Kommanditgesellschaft auf Aktien
    • Bernd-Dieter Holdt
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Two component cleaner and disinfectant tablet
    • Patent number 4,578,207
    • Issue date Mar 25, 1986
    • Henkel Kommanditgesellschaft auf Aktien
    • Bernd-Dieter Holdt
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE