The European patent (EP3810432), entitled “A Method For Providing An Object With A Unique Mark”, whose registrants are INCM and the University of Coimbra, and whose technology was invented and developed by VisTeam, was published by the European Patent Office with date 25/sep/2024.
This invention presents a solution to mark objects or to create a unique identity based on the apposition of glitter particles in a stamp. The applications are immense being some examples the assay marking of precious metal artifacts or the creation of unique tax stamps or anti-counterfeiting and brand protection labels. This main innovation presented by this patent is the ability to create unicity for each marking instantiation. The marking process with particles creates a PUF – Physically Unclonable Function, unable to be reproduced or exactly replicated, ending up in a unique identity. One object, one identity.
For more details, please read the official patent page (also here).
UniqueMark – A method to create and authenticate a unique mark in precious metal artefacts
Authors: Nuno Gonçalves and Leandro Cruz
Date:2019
Featured in: Jewellery Materials Congress 2019
A method for providing an object with a unique mark
Authors: Nuno Gonçalves, Bruno Patrão, Leandro Cruz, Ricardo Barata, João Barreto, João Duarte, Renato Monteiro, João Paulo Dias and Augusto Cavaleiro de Carvalho
Date:2019
Featured in: Applicants: Imprensa Nacional-Casa da Moeda and University of Coimbra
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UniqueMark
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Institute of Systems and Robotics Department of Electrical and Computers Engineering University of Coimbra