The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2021
Filed:
May. 16, 2017
Colop Digital Gmbh, Wels, AT;
Johan Bergqvist, Zug, CH;
COLOP DIGITAL GMBH, Wels, AT;
Abstract
Method to authenticate a substrate based on unique microstructure inherent to a region of interest of a substrate surface of the substrate, comprising the steps: (a) emitting photons from a light source onto the region of interest; (b) emitting ultrasound waves from a ultrasound source onto the region of interest; (c) capturing at least one image of the region of interest in one or both of the following two ways: (i) capturing a light image in the presence of ultrasound to obtain at least one captured image of the region of interest, or (ii) capturing an ultrasound echo image in the presence of IR or near IR light to obtain at least one captured image of the region of interest; and (d) comparing the at least one captured image with at least one reference in order to determine authenticity of the substrate.