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Mary Lou Olson

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  • Mendota Heights, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pet scarf with pouch
    • Patent number 6,016,573
    • Issue date Jan 25, 2000
    • Mary Lou Olson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Clean up with cut resistant layer
    • Patent number 5,301,806
    • Issue date Apr 12, 1994
    • Mary Lou Olson
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Clean up device
    • Patent number 4,964,188
    • Issue date Oct 23, 1990
    • Mary L. Olson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Dental flosser-dispenser
    • Patent number 4,901,742
    • Issue date Feb 20, 1990
    • Mary Lou C. Olson
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Chinese finger cuff dental floss
    • Patent number 4,817,643
    • Issue date Apr 4, 1989
    • Mary Lou C. Olson
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE