Patents by Inventor Warren J. Hartmann

Warren J. Hartmann 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).

  • Display device convertible between a cave configuration and a wall configuration
    Patent number: 6621531
    Abstract: A method for converting a wall configuration of a display device to a cave configuration, the display device including a first display module having a display screen including first and second opposite peripheral edges and means for displaying an image on the display screen, a second display module having a display screen including a peripheral edge and means for displaying an image on the display screen, and a third display model having a display screen including a peripheral edge and means for displaying an image on the display screen. Additionally the invention includes a method for converting a cave configuration of a display device to a wall configuration.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: September 16, 2003
    Assignee: Caterpillar Inc
    Inventors: David E. Cooper, Kevin M. Egle, Warren J. Hartmann, Francis B. Huck, Jr.
  • Display device convertible between a cave configuration and a wall configuration
    Publication number: 20030025647
    Abstract: A display device convertible between a cave configuration and a wall configuration is disclosed. The present display device includes a first display module having a display screen including first and second opposite peripheral edges and a first video projector for displaying an image on the display screen.
    Type: Application
    Filed: October 2, 2002
    Publication date: February 6, 2003
    Inventors: David E. Cooper, Kevin M. Egle, Warren J. Hartmann, Francis B. Huck
  • Display device convertible between a cave configuration and a wall configuration
    Patent number: 6490011
    Abstract: A display device convertible between a cave configuration and a wall configuration. The present display device includes a first display module having a display screen including first and second opposite peripheral edges and a first video projector for displaying an image on the display screen.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: December 3, 2002
    Assignee: Caterpillar Inc
    Inventors: David E. Cooper, Kevin M. Egle, Warren J. Hartmann, Francis B. Huck, Jr.