Fluorescent and phosphorescent tagged ink for indicia
US5569317A · kind A · utility
138Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Dec 22, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Inks have been discovered that may be used for providing additional security to the printed matter to which the ink has been affixed. A single ink provides the foregoing result by being fluorescent and phosphorescent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.