Patents by Inventor A. Stuart Zobel

A. Stuart Zobel 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).

  • Symbol and Reel Substitution Methods for Multi-Line Slot Machines
    Publication number: 20120083327
    Abstract: A method of operating a slot machine, and a slot machine in which the method may be used. One or more symbols on a reel are replaced with symbols prescribed by a selected schema. The schema may be selected randomly, or according to a weighted probability, or according to a count of recent plays. All symbols of one type may be replaced with one other type of symbol, or with a variety of different symbols as prescribed by the schema. A symbol stack may be replaced with another symbol stack. Symbols may be replaced on one, several, or all of the reels that make up the display.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 5, 2012
    Inventors: A. Stuart Zobel, Anthony M. Singer, Daniel Marks, T. Grant Bolling