Fluorescence spectroscopic method using polyester composition containing additive to prevent oxidative degradation, and substrate, optical filter, security document, and sensor device containing the polyester composition
US11733097B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
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Key dates
| Filing date | Nov 5, 2018 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Apr 2, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6482
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The field of the invention is that of fluorescence spectroscopic methods. In particular, the present invention relates to a fluorescence spectroscopic method and to several products that can be analyzed using this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.