Applications for radio frequency identification systems

US6486780B1 · kind B1 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Sharon R. Garber · Crystal, US
• Bernard A. Gonzalez · Windom, US
• Mitchell B. Grunes · Minneapolis, US
• Richard H. Jackson · Inver Grove Heights, US
• Gerald L. Karel · Maplewood, US
• John M. Kruse · Minneapolis, US
• Richard Lindahl · Hudson, US
• James E. Nash · Bloomington, US
• Chester Piotrowski · White Bear Lake, US
• John D. Yorkovich · Maplewood, US

Key dates

• Filing date: Jul 19, 2000
• Grant date: Nov 26, 2002
• Expiry date: Jul 19, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q9/285
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The present invention relates to RFID devices, including handheld RFID devices, and applications for such devices. The devices and applications may be used in connection with items that are associated with an RFID tag, and optionally a magnetic security element. The devices and applications are described with particular reference to library materials such as books, periodicals, and magnetic and optical media.