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. 07, 2014
Filed:
Aug. 08, 2005
Theodor Burchard, Gmund, DE;
Winfried Hoffmuller, Bad Tolz, DE;
Thorsten Pillo, Holzkirchen, DE;
Manfred Heim, Munich, DE;
Friedrich Kretschmar, Munich, DE;
Jurgen Ruck, Schliersee, DE;
Theodor Burchard, Gmund, DE;
Winfried Hoffmuller, Bad Tolz, DE;
Thorsten Pillo, Holzkirchen, DE;
Manfred Heim, Munich, DE;
Friedrich Kretschmar, Munich, DE;
Jurgen Ruck, Schliersee, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
The present invention relates to a security element () for securing valuable articles, having a first layer (), composed of cholesteric liquid crystal material, that is present at least in some areas, a second layer (), composed of liquid crystal material, that is present at least in some areas, and a further layer (), having a machine-readable feature, that is present at least in some areas and that is covered at least in some areas by the first and second layer composed of liquid crystal material.