Product authentication system and method
US6536672B1 · kind B1 · utility
65Cited by
76References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1999 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Apr 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F3/0294
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A product authentication system and method employs a unique mark that is simple and cost-effective to apply, but provides several layers of protection, including anti-counterfeit and anti-diversion, against counterfeiters. The unique mark contains a product control code that is printed in invisible ink comprising a UV ink and an IR ink. The first layer of protection is invisibility. The second layer of protection is the code itself. The third layer of protection is the presence of the IR ink in the invisible code. The fourth layer of protection is the IR emitting characteristics of the invisible code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.