TREA

Danielle M. Schreppel

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  • Saint Paul, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Expandable air filters
    • Patent number 10,981,099
    • Issue date Apr 20, 2021
    • 3M Innovative Properties Company
    • Glen O. Gregerson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter devices with gap sealing unit
    • Patent number 10,940,416
    • Issue date Mar 9, 2021
    • 3M Innovative Properties Company
    • Glen O. Gregerson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR FILTER DEVICES WITH GAP SEALING UNIT
    • Publication number 20210187425
    • Publication date Jun 24, 2021
    • 3M Innovative Properties Company
    • Glen O. Gregerson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER DEVICES WITH GAP SEALING UNIT
    • Publication number 20180345194
    • Publication date Dec 6, 2018
    • 3M Innovative Properties Company
    • Glen O. Gregerson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    EXPANDABLE AIR FILTERS
    • Publication number 20180272263
    • Publication date Sep 27, 2018
    • 3M Innovative Properties Company
    • Glen O. Gregerson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL