TREA

Stephen J. Plzak

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  • Bryn Mawr, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Snap hook
    • Patent number D543440
    • Issue date May 29, 2007
    • Design Research & Development Corp.
    • Stephen J. Plzak
    • D08 - Tools and hardware
  • Information Patent Grant

    Eyelet hook with strap
    • Patent number D541190
    • Issue date Apr 24, 2007
    • Design Research & Development Corp.
    • Stephen J. Plzak
    • D11 - Jewelry, symbolic insignia, and ornaments