Patents by Inventor Stephen J. Harper

Stephen J. Harper 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).

  • Simulator
    Patent number: D332248
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: January 5, 1993
    Assignee: Rediffusion Simulation Limited
    Inventor: Stephen J. Harper
  • Simulator
    Patent number: D332249
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: January 5, 1993
    Assignee: Rediffusion Simulation Limited
    Inventor: Stephen J. Harper
  • Aircraft simulator
    Patent number: D334409
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: March 30, 1993
    Assignee: Rediffusion Simulation Limited
    Inventor: Stephen J. Harper
  • Aircraft simulator
    Patent number: D334410
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: March 30, 1993
    Assignee: Rediffusion Simulation Limited
    Inventor: Stephen J. Harper
  • Aircraft simulator
    Patent number: D334591
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: April 6, 1993
    Assignee: Rediffusion Simulation Limited
    Inventor: Stephen J. Harper
  • Two screen console for computerized flight training simulator
    Patent number: D337103
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: July 6, 1993
    Assignee: Rediffusion Simulation Limited
    Inventor: Stephen J. Harper