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Michael Humphreys

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  • Nanjing, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solar drainback tank
    • Patent number 8,607,779
    • Issue date Dec 17, 2013
    • Apricus Inc
    • Michael Humphreys
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Hotwater tank
    • Patent number 8,567,388
    • Issue date Oct 29, 2013
    • Apricus Inc
    • Michael Humphreys
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Overflow valve for prevention of water vapor loss
    • Patent number 8,499,785
    • Issue date Aug 6, 2013
    • Apricus Inc
    • Michael Humphreys
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Solar Drainback Tank
    • Publication number 20120279491
    • Publication date Nov 8, 2012
    • Michael Humphreys
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    Hotwater Tank
    • Publication number 20120211002
    • Publication date Aug 23, 2012
    • Michael Humphreys
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    Overflow Valve For Prevention Of Water Vapor Loss
    • Publication number 20120180881
    • Publication date Jul 19, 2012
    • Michael Humphreys
    • F28 - HEAT EXCHANGE IN GENERAL