TREA

Donald J. Maylahn

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  • Skokie, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ankle exerciser or similar article
    • Patent number D311232
    • Issue date Oct 9, 1990
    • DM Systems, Inc.
    • Denis B. Drennan
    • D21 - Games, toys, and sports goods
  • Information Patent Grant

    Cast wedge
    • Patent number 4,372,300
    • Issue date Feb 8, 1983
    • DM Systems, Inc.
    • Denis B. Drennan
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Elbow suspension device
    • Patent number 4,315,504
    • Issue date Feb 16, 1982
    • DM Systems, Inc.
    • Dennis B. Drennan
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Heel supporting boot for bed patients
    • Patent number 4,186,738
    • Issue date Feb 5, 1980
    • Thomas R. Schleicher
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE