A method is disclosed for selling and tracking merchandise using Radio-Frequency Identification ("RFID") tags. The RFID tag typically contains an electronic microchip, which may be permanently attached to a substrate containing a small planar antenna. Each RFID tag is tuned by the manufacturer to operate...http://www.google.com/patents/US20040143505?utm_source=gb-gplus-sharePatent US20040143505 - Method for tracking and disposition of articles
