Method and device for identifying objects or documents
US8392715B2 · kind B2 · utility
12Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2008 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/003
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The document identification method comprises: In embodiments the method comprises, in addition, a step of printing a uniform area and the step of marking the document to form the identification mark comprises a step of emitting light with a laser in the uniform area.In embodiments the method comprises, in addition, a step of invisibly marking the identification mark on said document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.