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. 10, 2013
Filed:
Apr. 26, 2007
Applicants:
Walter Dörfler, München, DE;
Michael Bauer, Maisach, DE;
Inventors:
Walter Dörfler, München, DE;
Michael Bauer, Maisach, DE;
Assignee:
Giesecke & Devrient GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a security element for security papers, value documents and the like, having a laser-markable transparent or translucent marking layer into which, through the action of laser radiation, visually perceptible identifiers are introduced in the form of patterns, letters, numbers and/or images. The identifiers each comprise a lamellar structure composed of a plurality of substantially parallel lamella that extend into the depth of the marking layer and include the parameters color, width, height, lateral orientation, tilt angle and/or spacing.