Patents by Inventor Luis M. Vildosola

Luis M. Vildosola 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).

  • Domino playing piece system
    Patent number: 6209875
    Abstract: A new domino playing piece system for helping children learn and recognize numbers and animals. The inventive device includes a plurality of playing pieces with each playing piece comprising a display surface having first and second regions and a border between the first and second regions. The display surface of the playing piece has numeric indicia displayed thereon. Each of the first and second regions of the playing piece has an illustration displayed thereon with each illustration representing a numeric value. The sum of the numeric values of the illustrations of the first and second regions equals the value of the numeric indicia displayed on the playing piece.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: April 3, 2001
    Inventor: Luis M. Vildosola