Patents by Inventor Robert T. Roth

Robert T. Roth 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).

  • Keypad and method for arranging keys of the keypad in a clockwise orientation
    Patent number: 6137426
    Abstract: A keypad and method for arranging keys on a keypad is accomplished by a keypad typically including numeric keys imprinted with or adjacent uniquely assigned numerals ranging from zero through nine. The keys are arranged in a continuous, typically ascending, sequence residing in two parallel rows arranged horizontally, vertically or diagonally in a clockwise orientation (i.e. traversal of all the keys of both rows in sequential order is in a clockwise direction).
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: October 24, 2000
    Assignee: Robert T. Roth
    Inventor: Robert T. Roth