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Robert L. Witt

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  • Conroe, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Satellite seal arrangement for plug valve, ball valve or gate valve
    • Patent number 6,007,048
    • Issue date Dec 28, 1999
    • FMC Corporation
    • Tep Ungchusri
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe connector device
    • Patent number 4,867,483
    • Issue date Sep 19, 1989
    • FMC Corporation
    • Robert L. Witt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fire-safe seal for swivel joint
    • Patent number 4,489,953
    • Issue date Dec 25, 1984
    • FMC Corporation
    • Robert L. Witt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fire-safe seal for swivel joint
    • Patent number 4,431,217
    • Issue date Feb 14, 1984
    • FMC Corporation
    • Robert L. Witt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...