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Bruce Perkins

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Patents Applicationslast 30 patents

  • Information Patent Application

    Defrost Operation Management in Heat Pumps
    • Publication number 20180306485
    • Publication date Oct 25, 2018
    • Lennox Industries Inc.
    • Yi Qu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    DEFROST OPERATION MANAGEMENT IN HEAT PUMPS
    • Publication number 20150047375
    • Publication date Feb 19, 2015
    • Lennox Industries Inc.
    • Yi Qu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Secondary Defrost for Heat Pumps
    • Publication number 20140150479
    • Publication date Jun 5, 2014
    • Yi Qu
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    HEAT PUMP CONTROL SYSTEM USING PASSIVE DEFROST
    • Publication number 20110100041
    • Publication date May 5, 2011
    • Lennox Industries Inc.
    • Carl T. Crawford
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...