TREA

Karl Tratberger

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  • Duisburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pilot-operated servo-valve
    • Patent number 5,896,890
    • Issue date Apr 27, 1999
    • Hydrolux S.a r.l.
    • Arsene Bourkel
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Two-port cartridge seat valve
    • Patent number 5,873,561
    • Issue date Feb 23, 1999
    • Hydrolux S.a.r.l.
    • Arsene Bourkel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pilot stage for pressure control valves
    • Patent number 5,447,174
    • Issue date Sep 5, 1995
    • Hydrolux S.a.r.l.
    • Arsene Bourkel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pilot operated servo valve
    • Patent number 5,445,188
    • Issue date Aug 29, 1995
    • Hydrolux S.a.r.l.
    • Arsene Bourkel
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL