Barcodes with security material and readers for same
US11941468B2 · kind B2 · utility
0Cited by
21References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2023 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Mar 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A secure indicator includes a substrate, a barcode symbol that has a plurality of barcode modules provided on the substrate, and a security material positioned proximate the barcode symbol on the substrate. The security material is configured to be activated by irradiation at one or more predetermined activation wavelengths. Additionally, the barcode symbol is configured to be read (i) before the security material is activated and (ii) while the security material is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.