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:
Jan. 19, 2010
Filed:
Nov. 19, 2002
Applicants:
Thomas Attenberger, Poing, DE;
Wolfgang Deckenbach, Schechen, DE;
Rainer Hoppe, Nuremberg, DE;
Inventors:
Assignee:
Giesecke & Devrient GmbH, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A value or security document () contains a security feature () in the form of a film laser with an emitter layer () and preferably a protective layer (). A spatial, periodic modulation (), preferably of the surface of a substrate, permits fine adjustment of a laser wavelength within a range of possible wavelengths. This permits a coding of the security feature by different portions of different wavelengths.