TREA

Randy D. Smith

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  • Marshalltown, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat exchanger expanded overlap joint
    • Patent number 9,908,205
    • Issue date Mar 6, 2018
    • Lennox Industries Inc.
    • Donald N. Zimmer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Multi-position furnace
    • Patent number 7,036,498
    • Issue date May 2, 2006
    • Lennox Manufacturing Inc.
    • Matthew S. Riepenhoff
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    NOx reduction device
    • Patent number 6,485,294
    • Issue date Nov 26, 2002
    • Lennox Manufacturing Inc.
    • Matthew S. Riepenhoff
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

  • 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

    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

    Multi-position furnace
    • Publication number 20050126558
    • Publication date Jun 16, 2005
    • Lennox Manufacturing Inc.
    • Matthew S. Riepenhoff
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    NOx reduction device
    • Publication number 20020076669
    • Publication date Jun 20, 2002
    • Matthew S. Riepenhoff
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES