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. 11, 2025
Filed:
Nov. 08, 2024
Target Brands, Inc., Minneapolis, MN (US);
Christopher Brakob, Minneapolis, MN (US);
Target Brands, Inc., Minneapolis, MN (US);
Abstract
Disclosed herein are tamperproof gift cards. A gift card can include: a first identifier printed in permanent and visible ink on a treated first portion of the gift card and a second identifier printed in a matrix of ink dots on a second portion that obscures the second identifier. Attempting to remove the first identifier may cause visible indicators of tampering on the first portion. The matrix can include reactive and other non-reactive ink dots that, as printed, have a same visible appearance. The second identifier can be represented by the reactive ink dots. Rubbing the matrix with a physical object can cause the reactive and non-reactive ink dots to have different physical appearances so that the second identifier becomes visible. The gift card can also include tamperproof properties applied in layers that may cause modifications to the first or second portions of the gift card to become permanently visible.