Patent · US Active

Luminescent glass composition

US10414686B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

D. Swarovski KG · AT

Inventors

Roy Debbage · Kematen in Tirol, AT
Rainer Haid · Ellwangen, DE
Helmut Judmaier · Kolsass, AT
Johannes Maier · Tuntenhausen, DE
Florian Meissl · Innsbruck, AT
Gerold Sprachmann · Kolsassberg, AT

Key dates

Filing date	Aug 24, 2015
Grant date	Sep 17, 2019
Priority date	—
Expiry date	Jan 15, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/87
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to faceted gemstones based on a luminescent glass composition that contains particular oxides of rare earth metals and thus enables the faceted gemstones to be identified, and to a process for identifying the gemstones.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.