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Method of authenticating and/or identifying an article

  • US 8,590,800 B2
  • Filed: 12/08/2009
  • Issued: 11/26/2013
  • Est. Priority Date: 12/08/2008
  • Status: Active Grant
First Claim
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1. A method of authenticating and/or identifying an article containing a chemical marking agent, which is substantially inseparably enclosed in a marker as a carrier and contains a plurality of selected chemical elements and/or compounds, to form marker elements, the selected chemical elements and/or compounds present in the marker elements in a ratio of concentrations according to a predetermined encryption code, which method comprises the steps of:

  • i) qualitatively and/or quantitatively identifying the marker elements of the chemical marking agent, andii) comparing the values identified in step (i) with the predetermined encryption code.

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