Patents by Inventor John B. Barrett

John B. Barrett 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).

  • Computer peripheral device for positioning a cursor on a computer display
    Patent number: 5434594
    Abstract: An improved peripheral device for a computer includes a miniature motion-sensing mechanism which is placed in a pen-shaped body to allow computer input to be accomplished by a user in the familiar form of a pen or pencil. The mechanism include a rolling ball supported at six points by support shafts whose movement in response to ball motion is converted into signals indicative of the direction and magnitude of the movement of the device.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: July 18, 1995
    Assignee: Apt, Inc.
    Inventors: John K. Martinelli, John B. Barrett
  • Ball-operated control device for electronic circuits
    Patent number: D340696
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: October 26, 1993
    Assignee: Appoint
    Inventor: John B. Barrett
  • Cursor controlling pen
    Patent number: D349490
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: August 9, 1994
    Assignee: Appoint
    Inventor: John B. Barrett
  • Cursor control
    Patent number: D359955
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: July 4, 1995
    Assignee: Appoint, Inc.
    Inventor: John B. Barrett