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. 17, 2013
Filed:
Jul. 02, 2009
Winfried Hoffmuller, Bad Tolz, DE;
Marius Dichtl, Munich, DE;
Stefan Bichlmeier, Unterhaching, DE;
Lars Hoffmann, Freising, DE;
Manfred Heim, Bad Tolz, DE;
Winfried Hoffmuller, Bad Tolz, DE;
Marius Dichtl, Munich, DE;
Stefan Bichlmeier, Unterhaching, DE;
Lars Hoffmann, Freising, DE;
Manfred Heim, Bad Tolz, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
A security element for securing valuable articles comprises an optically variable layer () that conveys different color impressions at different viewing angles, and a color-constant layer (). The optically variable layer () and the color-constant layer () are stacked in a covering region (), while at most one of the optically variable layer () and the color-constant layer () is present outside () the covering region. The color impression of the stacked layers () in the covering region () and the color impression of the one layer () outside () the covering region are matched with each other when viewed at a predetermined viewing angle. Further, the color-constant layer comprises an ink layer () and a metal layer arranged below the ink layer ().