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:
May. 12, 2020
Filed:
Sep. 06, 2019
Applicant:
E Ink California, Llc, Fremont, CA (US);
Inventor:
Peter B. Laxton, Marshfield, MA (US);
Assignee:
E INK CALIFORNIA, LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G02B 26/08 (2006.01); G02F 1/29 (2006.01); G02F 1/09 (2006.01); B42D 25/369 (2014.01);
U.S. Cl.
CPC ...
G02F 1/09 (2013.01); B42D 25/369 (2014.10); G02F 2001/094 (2013.01);
Abstract
The present invention is directed to a method for authenticating a package using a magnetophoretic imaging film. It provides a low-cost method for verifying the authenticity of products in a way that is not immediately evident to counterfeiters. A single pre-patterned magnetic image can be used to display images on any number of individual imaging films.