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. 23, 2008
Filed:
Mar. 31, 2004
Anett Bailleu, Berlin, DE;
Arnim Franz-burgholz, Falkensee, DE;
Hans Demanowski, Woltersdorf, DE;
Daniel Grammlich, Karlsruhe, DE;
Manfred Paeschke, Basdorf, DE;
Konstantin Pötschke, Berlin, DE;
Martin Sprenger, Berlin, DE;
Anett Bailleu, Berlin, DE;
Arnim Franz-Burgholz, Falkensee, DE;
Hans Demanowski, Woltersdorf, DE;
Daniel Grammlich, Karlsruhe, DE;
Manfred Paeschke, Basdorf, DE;
Konstantin Pötschke, Berlin, DE;
Martin Sprenger, Berlin, DE;
Bundesdruckerei GmbH, Berlin, DE;
Abstract
A valuable document comprising at least one security element that is provided with a marking layer in a marking region, the layer containing an electroluminescent pigment and being applied to a carrier body. The electroluminescence of the pigment of one such valuable document must be able to be excited even with comparably low, externally applied field intensities. To this end, a plurality of electrically insulated field displacement elements having a minimum dielectric constant of 100 are distributed over the surface of the marking region, the field displacement elements being at a distance of approximately between 5 μm to 500 μm from each other and compressing the applied field in the gaps thereinbetween.