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. 24, 2025
Filed:
Jun. 24, 2022
Applicant:
Giesecke+devrient Epayments Gmbh, Munich, DE;
Inventors:
Assignee:
GIESECKE+DEVRIENT EPAYMENTS GMBH, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 19/077 (2006.01);
U.S. Cl.
CPC ...
G06K 19/07718 (2013.01); G06K 19/07722 (2013.01); G06K 19/07749 (2013.01);
Abstract
A method is provided for producing a chip card body having a metallic core layer for a contactless or dual-interface chip card. A slot in the metallic core layer for reducing eddy currents is generated not in the metallic multiple-copy sheet itself but instead only in the metallic core layer extracted from the metallic multiple-copy sheet. In this way, there are no short-circuit-forming metal chips left in the slot, since the slot is generated only after the extraction of the metallic core layer from the multiple-copy sheet.