Securing the Authenticity of Value Documents By Means of Characteristic Substances

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090258200A1
SERIAL NO

12083157

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a feature substance for securing the authenticity of documents of value, having at least one luminescent substance in particle form and nanoparticles enveloping the surfaces of the luminescent substance particles at least partially, wherein the properties of the feature substance result from the interaction of the properties of the luminescent substance and of the nanoparticles. The invention furthermore relates to a method for producing the feature substance, a method for securing the authenticity of a security element or document of value using a feature substance, as well as security elements and documents of value with authenticity features on the basis of the feature substance.

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Patent Owner(s)

Patent OwnerAddress
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHPRINZREGENTENSTRASSE 161 MUNICH 81677

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grauvogl, Gregor Oberhaching , DE 14 272
Scholz, Ulrich Buchbach , DE 40 183

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