Patents by Inventor Mark R. Dorman

Mark R. Dorman 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).

  • Patent number: 5389054
    Abstract: An educational talking balance beam comprised of a beam, a first notched support base, and a second notched support base. The beam contains a first wall, a second wall, and a third wall; and a multiplicity of symbols (such as numbers, letters, shapes, colors, and mixtures thereof) appear on the first exterior surface of the first wall. The device contains an apparatus for announcing the name of such symbol whenever pressure is applied to the exterior surface of the beam at a point where the symbol appears thereon.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: February 14, 1995
    Inventor: Mark R. Dorman