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Automated reagentless system of product fingerprint authentication and trademark protection

  • US 7,071,481 B2
  • Filed: 10/09/2003
  • Issued: 07/04/2006
  • Est. Priority Date: 10/09/2003
  • Status: Expired due to Fees
First Claim
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1. A method for authenticating products comprising:

  • a. sampling a representative series of randomly selected units of known products from a homonymous lot of known products manufactured in a single production cycle from identical raw materials and optional intermediates;

    b. obtaining light transmitted, luminescent and Raman scattering values for the series of known products to produce a signature for the known product;

    c. sampling an unknown product to obtain light transmitted, luminescent and Raman scattering values for the unknown product to produce a signature for the unknown product; and

    d. comparing the signature of the known product and the unknown product to determine if the signature of the unknown product is the same as the known product.

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