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Donald N. Zimmer

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  • Marshalltown, IA, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Heat Exchanger Having an Interference Rib
    • Publication number 20180009070
    • Publication date Jan 11, 2018
    • Lennox Industries Inc.
    • Donald N. Zimmer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    HVAC SYSTEMS AND METHODS WITH IMPROVED HEAT EXCHANGERS
    • Publication number 20150377512
    • Publication date Dec 31, 2015
    • Lennox Industries Inc.
    • Kirankumar Muley
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    HEAT EXCHANGER EXPANDED OVERLAP JOINT
    • Publication number 20110174302
    • Publication date Jul 21, 2011
    • Lennox Industries Inc.
    • Donald N. Zimmer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    HEAT EXCHANGER HAVING AN INTERFERENCE RIB
    • Publication number 20110174299
    • Publication date Jul 21, 2011
    • Lennox Industries, Incorporated
    • Donald N. Zimmer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    REFLARE TOOL AND PROCESS
    • Publication number 20110174048
    • Publication date Jul 21, 2011
    • Lennox Industries Inc.
    • Donald N. Zimmer
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Enclosure cover and method for making an enclosure cover
    • Publication number 20070089897
    • Publication date Apr 26, 2007
    • Lennox Manufacturing, Inc.
    • Donald N. Zimmer
    • F24 - HEATING RANGES VENTILATING