Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method for manufacturing a two-dimensional coloured bar code and associated security device

Method for manufacturing a two-dimensional coloured bar code and associated security device

US Patent 12138949 · Granted Nov 12, 2024

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical device with holographic layer2025
Security document having a personalized image formed from a metal hologram and m2025
Reading a graphic code2023
Security document including a laserizable layer and a pattern for illuminating i2022
Process for producing, by etching through a lenticular grating, images that may 2021
Document capable of generating a color image2021
Security document including a laserizable layer and a pattern for illuminating i2020
Security device with a lens array comprising several etched colour patterns2020
Improving a depth image subject to a shadow effect2020
Method of and apparatus for processing an object2020
Method for verifying a security device comprising a signature2019
Identification document2018