Patents by Inventor Larry D. Stewart

Larry D. Stewart 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).

  • Virtual reality baseball training and amusement system
    Patent number: 5443260
    Abstract: A virtual reality baseball training and amusement apparatus which detects the speed and projected flight of a batted baseball or softball. The invention provides a display of a simulated game played in response to the trajectory information of a struck ball. The invention also allows users to interact with the simulated game by moving players in response to the simulated flight of the ball.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: August 22, 1995
    Assignee: Dynamic Sports Technology
    Inventors: Larry D. Stewart, Steven Gautieri, Jerome Simon, Mark Greer
  • Novelty device for emitting sounds
    Patent number: D446554
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: August 14, 2001
    Assignee: Funworld Productions International, Inc.
    Inventors: Steven Gautieri, Larry D. Stewart, Lesley Longstaff
  • Novelty device for emitting sounds
    Patent number: D463507
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: September 24, 2002
    Assignee: World 2 Toys, Inc.
    Inventors: Steven Gautieri, Larry D. Stewart, Joseph Stewart, Mrako Fenster, Yutaka Kazamaki, Jonathon Kemnitzer, Jonathan Ocenas, Larry Guerra