Patents Assigned to BABN Technologies Inc.
  • Tamper-resistant article and method of authenticating the same
    Patent number: 5403039
    Abstract: A printed document, such as a lottery ticket, includes a thermochromic layer at least over the imprinted data region. The printed document can be authenticated by applying heat to the thermochromic material and observing the presence or absence of a reversible color change.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: April 4, 1995
    Assignee: BABN Technologies, Inc.
    Inventors: Joseph C. Borowski, Jr., Robert O. Fulton, Jacques Lavoie
  • Tamper-resistant article and method of authenticating the same
    Patent number: 5193854
    Abstract: A printed document, such as a lottery ticket, includes a thermochromic layer at least over the imprinted data region. The printed document can be authenticated by applying heat to the thermochromic material and observing the presence or absence of a reversible color change.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: March 16, 1993
    Assignee: BABN Technologies Inc.
    Inventors: Joseph C. Borowski, Jr., Robert O. Fulton, Jacques Lavoie