TREA

Warren R. Hedrick

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  • Holland, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Insulated chimney assembly
    • Patent number 4,502,370
    • Issue date Mar 5, 1985
    • Interpace Corporation
    • James P. Baileys
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Thermally controlled vent damper
    • Patent number 4,460,121
    • Issue date Jul 17, 1984
    • Interpace Corporation
    • Warren R. Hedrick
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Air register with automatic zone control
    • Patent number 4,445,637
    • Issue date May 1, 1984
    • Interpace Corporation
    • Warren R. Hedrick
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Air diffusers
    • Patent number 3,948,155
    • Issue date Apr 6, 1976
    • Allied Thermal Corporation
    • Warren R. Hedrick
    • F24 - HEATING RANGES VENTILATING