Security marking, method and device for reading the security marking, security document marked with the security marking, and method and system for verifying said security document
US12367359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2021 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Sep 1, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/369
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a security marking (100), a method and a device for reading and decoding the security marking (100), a security document (150) marked with the security marking (100), and a method and a system for verifying and authenticating said security document (150). The security marking (100) comprises a machine readable marking (130) overlapping with a magnetically induced layer (120) of a material including magnetically oriented reflective platelet-shaped magnetic or magnetizable pigment particles with two zones (120a) and (120b) of distinct orientations of the particles. The encoded data on the machine readable marking (130) being decodable only after the data separately read from the two zones (120a) and (120b) are gathered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.