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:
Apr. 12, 2016
Filed:
Sep. 27, 2011
Thomas Bolle, Efringen-Kirchen, DE;
Hans Reichert, Rheinfelden, DE;
Michelle Richert, Illzach, FR;
Igor Zhurminsky, Zug, CH;
Marc Schnieper, Onex, CH;
Thomas Bolle, Efringen-Kirchen, DE;
Hans Reichert, Rheinfelden, DE;
Michelle Richert, Illzach, FR;
Igor Zhurminsky, Zug, CH;
Marc Schnieper, Onex, CH;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention is in the field of security documents, more particularly in the field of security elements aimed to protect security documents against copying (illegal reproduction) and counterfeiting. It discloses a security element having a security feature which changes its visual appearance after irradiation with light, especially with UV light and at rotation and/or tilting. Security documents comprising said security element, as well as a method for producing said security element, are also disclosed.