Authenticity feature in the form of luminescent substances

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United States of America Patent

PATENT NO 9878573
SERIAL NO

13515317

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Abstract

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The invention relates to a security element having at least two luminescent substances. The invention starts out from a security element having at least two luminescent substances, whereby the security element has a first and a second luminescent substance which have a substantially identical, joint emission band, whereby at least the first or the second luminescent substance, or both luminescent substances, have at least one excitation band that leads to an emission at the joint emission band only in the case of the first or the second luminescent substance.

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Patent Owner(s)

Patent OwnerAddress
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHPRINZREGENTENSTRASSE 161 MUNICH 81677

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Giering, Thomas Kirchseeon, DE 47 578
Grauvogl, Gregor Oberhaching, DE 14 272
Kersten, Peter Feldkirchen Westerham, DE 23 334
Magg, Ulrich Dachau, DE 7 58

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