Document security processes
US6673500B1 · kind B1 · utility
16Cited by
21References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Aug 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M3/144
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process comprising applying a toner security mark on a document generated by xerographic means, and which mark possesses white glossy characteristics, and wherein said toner is comprised of a waterborne polymer resin and a colorant, and optionally a second security mark generated by a toner comprised of a waterborne polymer resin and a UV fluorescent component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.