Security markers for identifying a source of a substance

Gary A. Ross (Inventor), Graham I. Johnson (Inventor), Barrie Clark (Inventor), Simon J. Forrest (Inventor)

Research output: Patent


A method of identifying a source of a Substance incorporating one or more luminescent markers comprises illuminating the Substance to stimulate emission from at least one of the luminescent markers. A luminescent signature is generated from the detected luminescent emission. The source of the substance is identified based on a match between the generated luminescent signature and a pre-defined luminescent signature.
Original languageEnglish
Patent numberUS 7,800,088 B2
Filing date2/11/05
Publication statusPublished - 21 Sept 2010
Externally publishedYes


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