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Philip D. Eitzman

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  • Lake Elmo, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Exhalation valve and respirator including same
    • Patent number 12,070,634
    • Issue date Aug 27, 2024
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • A41 - WEARING APPAREL
  • Information Patent Grant

    Pleated air filter with bridging filaments and continuous-contact f...
    • Patent number 12,017,175
    • Issue date Jun 25, 2024
    • 3M Innovative Properties Company
    • Zhiqun Zhang
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Valve cover
    • Patent number D900306
    • Issue date Oct 27, 2020
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover
    • Patent number D882758
    • Issue date Apr 28, 2020
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover
    • Patent number D849245
    • Issue date May 21, 2019
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover with diamond pattern
    • Patent number D843562
    • Issue date Mar 19, 2019
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover
    • Patent number D842983
    • Issue date Mar 12, 2019
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover with openings
    • Patent number D828546
    • Issue date Sep 11, 2018
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover
    • Patent number D827811
    • Issue date Sep 4, 2018
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Valve cover with openings
    • Patent number D827812
    • Issue date Sep 4, 2018
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Respirator having folded nose region
    • Patent number D704824
    • Issue date May 13, 2014
    • 3M Innovation Properties Company
    • Dean R. Duffy
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Process of making a fibrous electret web
    • Patent number 6,824,718
    • Issue date Nov 30, 2004
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Method of making a fibrous electret web using a nonaqueous polar li...
    • Patent number 6,454,986
    • Issue date Sep 24, 2002
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Method and apparatus for making a fibrous electret web using a wett...
    • Patent number 6,406,657
    • Issue date Jun 18, 2002
    • 3M Innovative Properties Company
    • Philip D. Eitzman
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Method and apparatus for making a nonwoven fibrous electret web fro...
    • Patent number 6,375,886
    • Issue date Apr 23, 2002
    • 3M Innovative Properties Company
    • Seyed A. Angadjivand
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Cartridge filters with insoluble enzyme particulates contained thereon
    • Patent number 5,614,105
    • Issue date Mar 25, 1997
    • Minnesota Mining and Manufacturing Company
    • Steven M. Heilmann
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Cartridge filters with insoluble enzyme particulates contained thereon
    • Patent number 5,478,466
    • Issue date Dec 26, 1995
    • Minnesota Mining and Manufacturing Company
    • Steven M. Heilmann
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method of isolating and purifying a biomacromolecule
    • Patent number 5,468,847
    • Issue date Nov 21, 1995
    • Minnesota Mining and Manufacturing Company
    • Steven M. Heilmann
    • C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents