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:
Nov. 05, 2013
Filed:
Jul. 02, 2009
Christian Kohlert, Oberahr, DE;
Bernd Schmidt, Gackenbach, DE;
Walter Egenolf, Oetzingen, DE;
Tamara Zistjakova, St. Petersburg, RU;
Christian Kohlert, Oberahr, DE;
Bernd Schmidt, Gackenbach, DE;
Walter Egenolf, Oetzingen, DE;
Tamara Zistjakova, St. Petersburg, RU;
Kloeckner Pentaplast GmbH & Co. KG, Heiligenroth, DE;
Abstract
A packaging film which contains pigment particles randomly distributed in a low surface-area density is used for the authentication of products. An imaging device is used to record a first digital image of a packaged product. The positional coordinates, and optionally the color values, of the pigment particles contained in the packaging film are determined from the digital image by means of a computer program and an identification code is calculated from the coordinate or color values and stored in a database. To authenticate the product at a later time, a second digital image is recorded and a test code is determined and compared with the recorded identification code.