Patents by Inventor Douglas M. Szymanski

Douglas M. Szymanski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotatable book stand system
    Patent number: 11006745
    Abstract: A rotatable book stand has a lower base plate, an upper base plate, a roller bearing assembly, and a support member. The lower base plate has a first upper surface and a first lower surface. The upper base plate has a second upper surface and a second lower surface. The roller bearing assembly has a third upper surface and a third lower surface. The third upper surface is secured to the second lower surface. The third lower surface is secured to the first upper surface. The roller bearing assembly is in a circular configuration. The support member is attached to the second upper surface and is adapted to support a plurality of books.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 18, 2021
    Inventor: Douglas M. Szymanski