TREA

Roger B. Williams

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  • Colville, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air hood
    • Patent number 10,077,933
    • Issue date Sep 18, 2018
    • Colmac Coil Manufacturing, Inc.
    • Bruce Ian Nelson
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Heat exchanger and method for defrosting a heat exchanger
    • Patent number 7,712,327
    • Issue date May 11, 2010
    • Colmac Coil Manufacturing, Inc.
    • Bruce I. Nelson
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Air Hood
    • Publication number 20170003066
    • Publication date Jan 5, 2017
    • Colmac Coil Manufacturing, Inc.
    • Bruce Ian Nelson
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Heat exchanger and method for defrosting a heat exchanger
    • Publication number 20080229763
    • Publication date Sep 25, 2008
    • Colmac Coil Manufacturing, Inc.
    • Bruce I. Nelson
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...