Patents Represented by Attorney Nathan J. Witzany, Esq.

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  • Breathing air dilation device
    Patent number: D595848
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: July 7, 2009
    Assignee: Dolezal Creative Innovations, LLC
    Inventors: David M. Dolezal, John D. Wilder, Daniel M. Gelfman