Patents by Inventor Darrel E. Leister

Darrel E. Leister 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).

  • Checkout system with inlaid checkout counter keypad
    Patent number: 5196686
    Abstract: A checkout counter includes an optical scanning system mounted therein for projecting scanning light beams through an aperture in the counter for scanning a coded label attached to a merchandise item positioned adjacent the aperture. The counter includes a keypad for use by the checkout operator to input a number representing the number of merchandise items which are of the same type enabling the items to be checked out without requiring the items to be individually scanned by the optical scanning system.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: March 23, 1993
    Assignee: NCR Corporation
    Inventor: Darrel E. Leister