Patents by Inventor Tomas Trousil

Tomas Trousil 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).

  • Pressure sensitive stylus having resiliently compressible tip element
    Patent number: 5581052
    Abstract: A stylus for use with a digitizer tablet has a tip element that includes a front portion with a tip for engaging the surface of the tablet, and a back portion of the tip element within the stylus housing. The back portion of the tip element is adapted to apply pressure to a pressure sensitive resistance element. The front and back portions of the tip element are coupled together by a spring, in order that the tip element be resiliently compressible in the axial direction of the stylus.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: December 3, 1996
    Assignee: Summagraphics Corporation
    Inventors: Michael J. Padula, David Siefer, Frank Chiappetta, Tomas Trousil