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:
Nov. 19, 2019
Filed:
Jul. 19, 2017
Applicant:
Giesecke+devrient Currency Technology Gmbh, Munich, DE;
Inventor:
Johann Kecht, Munich, DE;
Assignee:
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 3/14 (2006.01); C09K 11/02 (2006.01); B42D 25/29 (2014.01); B42D 25/355 (2014.01); B42D 25/382 (2014.01); C09K 11/08 (2006.01); G06K 19/14 (2006.01); D21H 21/30 (2006.01); C09D 11/02 (2014.01); C09C 3/06 (2006.01); D21H 21/48 (2006.01);
U.S. Cl.
CPC ...
B41M 3/144 (2013.01); B42D 25/29 (2014.10); B42D 25/355 (2014.10); B42D 25/382 (2014.10); C09C 3/063 (2013.01); C09D 11/02 (2013.01); C09K 11/025 (2013.01); C09K 11/0838 (2013.01); C09K 11/0861 (2013.01); C09K 11/0872 (2013.01); C09K 11/0888 (2013.01); D21H 21/30 (2013.01); D21H 21/48 (2013.01); G06K 19/14 (2013.01); C01P 2004/86 (2013.01);
Abstract
The invention relates to a security feature for securing value documents, comprising a chemically unstable inorganic feature substance and a stabilizing component that comprises a substance that stabilizes the feature substance, which substance has at least the same solubility in water as the feature substance to be protected and releases ions when said substance is decomposed, which ions conform to the ions of the feature substance at least in part.