Patents by Inventor Leroy Stolberg

Leroy Stolberg 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).

  • Multi-loop antenna for radio frequency identification (RFID) communication
    Patent number: 7417599
    Abstract: A multi-loop antenna is described having a plurality of conductive loops to produce an electromagnetic field for radio frequency identification (RFID) communication with RFID tags. The conductive loops are spaced apart at least a distance that is selected based on a dimension of the RFID tags with which the antenna communicates. In this manner, the loops are positioned and spaced in a manner that reduces the size of the holes within the resulting magnetic field. In addition, the configuration of the described dual-loop antenna increases the coverage of the antenna, and decreases inter-winding capacitance, thereby increasing overall read range achieved by the antenna.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: August 26, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Edward D. Goff, Seth A. Lieffort, Leroy Stolberg
  • Multi-loop antenna for radio frequency identification (RFID) communication
    Publication number: 20040183742
    Abstract: A multi-loop antenna is described having a plurality of conductive loops to produce an electromagnetic field for radio frequency identification (RFID) communication with RFID tags. The conductive loops are spaced apart at least a distance that is selected based on a dimension of the RFID tags with which the antenna communicates. In this manner, the loops are positioned and spaced in a manner that reduces the size of the holes within the resulting magnetic field. In addition, the configuration of the described dual-loop antenna increases the coverage of the antenna, and decreases inter-winding capacitance, thereby increasing overall read range achieved by the antenna.
    Type: Application
    Filed: February 20, 2004
    Publication date: September 23, 2004
    Inventors: Edward D. Goff, Seth A. Lieffort, Leroy Stolberg