Patents Assigned to Touch Books, Inc.
  • Tactile symbols for color recognition
    Patent number: 5286204
    Abstract: Tactile symbols for color recognition by blind or visually impaired persons comprising a surface above which a color symbol is raised substantially parallel to the first surface. The raised surface of the unitary symbol is continuous such that persons may identify the symbol by touch.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: February 15, 1994
    Assignee: Touch Books, Inc.
    Inventor: Michael J. Minardi