Patents by Inventor Sai-Kit K. Tong

Sai-Kit K. Tong 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).

  • Object tracking and management system and method using radio-frequency identification tags
    Patent number: 6600418
    Abstract: An object tracking and management system and method using radio-frequency identification (“RFID”) tags is disclosed. Objects to be moved between locations are outfitted with RFID tags having information relating to the identities of the objects. The locations are also marked by RFID tags containing information on the locations. A transport vehicle for moving the objects is equipped with an RFID interrogator capable of detecting signals from the RFID tags. An onboard processor provides the operator of the vehicle with instructions on the movement of objects. The processor also determines the identities of the objects and locations from the detected signals and provides the operator with feedback as to the identity of an object being moved, the location of the vehicle and any error in carrying out the instructions. Numerous variations of the basic system and method using RFID tags are also described.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: July 29, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Robert C. Francis, James P. McGee, Robert A. Sainati, Richard L. Sheehan, Jr., Sai-Kit K. Tong
  • Radio frequency identification systems for asset tracking
    Publication number: 20030089771
    Abstract: An asset tracking system is provided, having particular usefulness in connection with the interrogation of RFID-tagged pallets by a forklift equipped with one or more RFID reader antennas. A useful embodiment of an RFID-tagged pallet is described, along with other beneficial components of such a system.
    Type: Application
    Filed: November 12, 2001
    Publication date: May 15, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Eric R. Cybulski, Francis D. Dehn, Robert C. Francis, Peter B. Hogerton, Mary C. Kallestad, Karl M. Kropp, James P. McGee, Sai-Kit K. Tong
  • Object tracking and management system and method using radio-frequency identification tags
    Publication number: 20020070862
    Abstract: An object tracking and management system and method using radio-frequency identification (“RFID”) tags is disclosed. Objects to be moved between locations are outfitted with RFID tags having information relating to the identities of the objects. The locations are also marked by RFID tags containing information on the locations. A transport vehicle for moving the objects is equipped with an RFID interrogator capable of detecting signals from the RFID tags. An onboard processor provides the operator of the vehicle with instructions on the movement of objects. The processor also determines the identities of the objects and locations from the detected signals and provides the operator with feedback as to the identity of an object being moved, the location of the vehicle and any error in carrying out the instructions. Numerous variations of the basic system and method using RFID tags are also described.
    Type: Application
    Filed: December 12, 2000
    Publication date: June 13, 2002
    Inventors: Robert C. Francis, James P. McGee, Robert A. Sainati, Richard L. Sheehan, Sai-Kit K. Tong