TREA

Paul F. Rieffle

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  • Pittsburgh, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe couplings and coupling gaskets
    • Patent number 4,316,053
    • Issue date Feb 16, 1982
    • Coupling Systems, Inc.
    • Paul F. Rieffle
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe and tubing connectors
    • Patent number 4,119,335
    • Issue date Oct 10, 1978
    • Coupling Systems, Inc.
    • Paul F. Rieffle
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe and tubing connecting sleeve
    • Patent number 4,070,046
    • Issue date Jan 24, 1978
    • Coupling Systems, Inc.
    • Charles E. Felker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...