TREA

Derek M. Helenberger

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  • Berkley, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Prosthetic angled locking coupler device
    • Patent number 7,083,654
    • Issue date Aug 1, 2006
    • Becker Orthopedic Appliance Company
    • Derek M. Helenberger
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Knee joint and method
    • Patent number 6,471,664
    • Issue date Oct 29, 2002
    • Becker Orthopedic Appliance Company
    • James H. Campbell
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents