Metallic materials with embedded luminescent particles
US9175398B2 · kind B2 · utility
1Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2014 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jun 20, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12493
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Formation of an authentication element by deposition of a metal layer with embedded particles on a metal substrate, wherein the embedded particles are configured to convert energy from one wavelength to another. The embedded particles may be upconverters, downconverters, or phosphorescent phosphors, which can be detected and measured with analytical equipment when deposited in the metal layer. A metal substrate may include coinage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.