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:
Jun. 17, 2025
Filed:
Oct. 02, 2023
Giesecke+devrient Currency Technology Gmbh, Munich, DE;
Christian Schmitz, Schliersee-Neuhaus, DE;
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH, Munich, DE;
Abstract
The invention relates to a security element, preferably in the form of a security strip, security thread or security patch, having a machine-readable coding, which is based on substances absorbent in the infrared spectral range, wherein the machine-readable coding comprises first and second code areas, which are arranged spatially separated from one another. The substances absorbent in the infrared spectral range include at least one first substance, which is not detectable by means of magnetic field measurement, and at least one second substance, which is detectable by means of magnetic field measurement, wherein the at least one first substance is introduced into at least one of the first code areas and the second substance is introduced into at least one of the second code areas. A method is provided for checking the authenticity of such a security element.