Patents by Inventor Jeffery W. Lawrence

Jeffery W. Lawrence 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).

  • Shopping cart
    Patent number: 7920062
    Abstract: The present invention teaches and discloses method and apparatus for alerting a grocery store check out cashier of merchandise placed on the bottom tray of a typical grocery shopping cart. A passive RFID transponder is incorporated into the structure of the cart which when interrogated by an associated reader, located at the cashier's check out station, responds with a signal verifying the presence, or absence, of an unseen item upon the carts bottom tray.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: April 5, 2011
    Assignee: Evolution Robotics Retail, Inc.
    Inventors: Rolf A. Konstad, Jeffery W. Lawrence
  • Shopping cart
    Patent number: 7242300
    Abstract: The present invention teaches and discloses method and apparatus for alerting a grocery store check out cashier of merchandise placed on the bottom tray of a typical grocery shopping cart. A passive RFID transponder is incorporated into the structure of the cart which when interrogated by an associated reader, located at the cashier's check out station, responds with a signal verifying the presence, or absence, of an unseen item upon the carts bottom tray.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: July 10, 2007
    Assignee: Evolution Robotics Retail, Inc.
    Inventors: Rolf A. Konstad, Jeffery W. Lawrence