TREA

David E. Overdorff II

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  • Ruffs Dale, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    High efficiency take-off fitting
    • Patent number 10,436,369
    • Issue date Oct 8, 2019
    • Ductmate Industries, Inc.
    • Alvin L. Jefferson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    High Efficiency Take-Off Fitting
    • Publication number 20140049038
    • Publication date Feb 20, 2014
    • DUCTMATE INDUSTRIES, INC.
    • Alvin L. Jefferson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Residential Ductwork System
    • Publication number 20140052417
    • Publication date Feb 20, 2014
    • DUCTMATE INDUSTRIES, INC.
    • Douglas G. Gudenburr
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Rectangular Sheet Metal Sealed Duct
    • Publication number 20140048167
    • Publication date Feb 20, 2014
    • DUCTMATE INDUSTRIES, INC.
    • Douglas G. Gudenburr
    • F24 - HEATING RANGES VENTILATING