TREA

Earl Refsland

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilation system
    • Patent number 11,007,334
    • Issue date May 18, 2021
    • Allied Healthcare Products, Inc.
    • Earl Refsland
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Ventilation system
    • Patent number 9,526,853
    • Issue date Dec 27, 2016
    • Allied Healthcare Products, Inc.
    • Earl Refsland
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    VENTILATION SYSTEM
    • Publication number 20170080170
    • Publication date Mar 23, 2017
    • Allied Healthcare Products, Inc.
    • Earl Refsland
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    VENTILATION SYSTEM
    • Publication number 20120060840
    • Publication date Mar 15, 2012
    • Allied Healthcare Products, Inc.
    • Earl Refsland
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE