TREA

Richard E. Marzec

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  • Higganum, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multiple outlet valve
    • Patent number D442260
    • Issue date May 15, 2001
    • The Keeney Manufacturing Company
    • Richard E. Marzec
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Universal multi-path control valve system
    • Patent number 6,206,028
    • Issue date Mar 27, 2001
    • The Keeney Manufacturing Company
    • R. Stuart Holden
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...