Rare earth frits for fluorescence and methods for laser marking applications
US12351512B2 · kind B2 · utility
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2References
12Claims
0Family size
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Key dates
| Filing date | Apr 30, 2021 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Apr 30, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/807
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Fluorescent rare earth glass frits are suitable for laser marking. A marking composition including fluorescent glass frits is disclosed that is capable of emitting fluorescence under irradiation of ultraviolet rays. A method of forming marks or indicia on a substrate using the fluorescent rare earth glass frits is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.