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:
Jul. 02, 2013
Filed:
Oct. 31, 2008
Applicants:
Edward Springmann, Berlin, DE;
Manfred Paeschke, Wandlitz, DE;
Oliver Muth, Berlin, DE;
Inventors:
Assignees:
Bayer Material Science AG, Leverkusen, DE;
Bundesdruckerei GmbH, Berlin, DE;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/54 (2006.01); H04N 1/44 (2006.01); B42D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the production of a document, image information is incorporated into a plurality of layers of the document such that the pieces of image information are combined into a total image. The image information in at least two of the layers includes digital watermark information. The entirety of the digital watermark information in the at least two layers forms a security feature for an authentication of the document. The invention further relates to a respective document, a method for authentication, and a device for authentication.