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Method of Making an Authenticatable Article and Method of Authenticating

  • US 20070111315A1
  • Filed: 11/13/2006
  • Published: 05/17/2007
  • Est. Priority Date: 07/13/2004
  • Status: Abandoned Application
First Claim
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1. A method of authenticating an article, comprising:

  • illuminating an article comprising a polymer layer and a coating disposed on a side of the polymer layer, wherein the polymer layer comprises a first taggant;

    wherein the coating causes a predetermined alteration in an emission from the taggant to form an altered emission; and

    determining if the altered emission is within a selected emission range.

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