Methods for optically encoding an object with upconverting materials and compositions used therein
US8796030B2 · kind B2 · utility
3Cited by
22References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2004 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | May 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates generally to encoding samples. More specifically, it relates to barcodes and compositions involving upconverters and methods including them. In a composition aspect of the invention, a composition comprising two or more lanthanide materials is provided. Each lanthanide material comprises a host, an absorber, and an emitter, and the materials emit detectable electromagnetic radiation upon excitation with absorbable electromagnetic energy. One or more relative ratios of emission intensities uniquely identify the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.