Label having an invisible bar code applied thereon
US6203069A · kind A · utility
116Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Oct 15, 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 and read, but provides several layers of protection, including anti-counterfeit and anti-diversion, against counterfeiters. The unique mark includes a bar code that is printed in invisible ink comprising a UV or near-IR ink and an IR mark. The first layer of protection is invisibility. The second layer of protection is the bar code itself. The third layer of protection is the presence of the IR mark in the unique mark. The fourth layer of protection is the IR emitting characteristics of the IR mark.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.