Patents Represented by Attorney Peter L. OIson

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  • Identification tag with enhanced security
    Patent number: 6154137
    Abstract: A combination tag is disclosed, including a magnetically-responsive element and a radio frequency-responsive element. In one embodiment, the magnetically-responsive element also functions as an antenna for the radio frequency-responsive element.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: November 28, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Edward D. Goff, Gerald L. Karel, Chester Piotrowski, Robert A. Sainati, Ching-Long Tsai