TREA

Hans-Rudolf Fischer

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  • Erftstadt, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Friction vacuum pump with a stator and a rotor
    • Patent number 6,619,911
    • Issue date Sep 16, 2003
    • Leybold Vakuum GmbH
    • Heinrich Engländer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Friction vacuum pump with a stator and a rotor
    • Patent number 6,435,811
    • Issue date Aug 20, 2002
    • Leybold Vakuum GmbH
    • Christian Beyer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump with shaft bearing
    • Patent number 6,149,382
    • Issue date Nov 21, 2000
    • Leybold Vakuum GmbH
    • Heinrich Englander
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuumtight connection
    • Patent number 5,829,794
    • Issue date Nov 3, 1998
    • Leybold Aktiengesellschaft
    • Friedrich Schulz-Hausmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...