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Rotatrol AG

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  • Cham, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary noise attenuating valve
    • Patent number 5,937,901
    • Issue date Aug 17, 1999
    • Rotatrol AG
    • Roger Bey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotary noise attenuating valve
    • Patent number 5,772,178
    • Issue date Jun 30, 1998
    • Rotatrol AG
    • Roger Bey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball valve or plug valve provided with an insert
    • Patent number 5,509,446
    • Issue date Apr 23, 1996
    • Rotatrol AG
    • Roger Bey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Butterfly type control valve
    • Patent number 5,480,123
    • Issue date Jan 2, 1996
    • Rotatrol AG
    • Roger Bey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

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