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.:

US 8540812 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 24, 2013

Filed:

Aug. 05, 2011
Applicants:

Burkhard Krietsch, Dieburg, DE;

Matthias Kuntz, Seeheim-Jugenheim, DE;

Oliver Muth, Berlin, DE;

Manfred Paeschke, Basdorf, DE;

Jakob Kuen, Berlin, DE;

Inventors:

Burkhard Krietsch, Dieburg, DE;

Matthias Kuntz, Seeheim-Jugenheim, DE;

Oliver Muth, Berlin, DE;

Manfred Paeschke, Basdorf, DE;

Jakob Kuen, Berlin, DE;

Assignee:

MERCK PATENT GmbH, Darmstadt, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a machine-readable security element for security products which comprises at least one particulate substance having electroluminescent properties and a transparent, electrically conductive pigment, to a priming ink for the production of a security element of this type, and to a security product which includes the security element.


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