Patents by Inventor Karl D. Toll

Karl D. Toll 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).

  • Multiple digit electronic game
    Patent number: 4206920
    Abstract: An electronic game adapted to permit a player to select a sequence of digits in anticipation of a sequence of digits selected by a random number generator is provided with a programmable comparator which the player may direct to provide a WIN indication logic output in the event of a perfect, sequential match between the player selected digits and the randomly selected digits or, a match between the player selected digits and the randomly selected digits irrespective of sequence.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: June 10, 1980
    Inventors: Fred Weatherford, Karl D. Toll