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:
Oct. 11, 2011
Filed:
Mar. 13, 2007
Thomas Stierman, Mahtomedi, MN (US);
Dan Hunt, Mounds View, MN (US);
Chris Zdon, Minneapolis, MN (US);
Peter Meyers, White Bear Lake, MN (US);
Thomas Stierman, Mahtomedi, MN (US);
Dan Hunt, Mounds View, MN (US);
Chris Zdon, Minneapolis, MN (US);
Peter Meyers, White Bear Lake, MN (US);
SMI Holdings, Inc., Arden Hills, MN (US);
Abstract
A system, apparatus, and method for identifying and authenticating articles using expression codes obtained from marks incorporating microparticles on or in articles, article packaging, or article labeling where the expression codes are based on signature strings generated relative to attributes of valid individual microparticles. The system, apparatus, and method can also enable the serialization of articles over and above the code-formulation that is achievable with multi-layered color-coded microparticles or single expression microparticles.