Patent · US Expired

Optical colored glass, its use, and an optical long-pass cutoff filter

US7144834B2 · kind B2 · utility

4Cited by

10References

22Claims

0Family size

Assignee

Schott AG · DE

Inventors

Rolf Clasen · Saarburg, DE
Monika Gierke · Wiesbaden, DE
Jochen Freund · Stadecken-Elsheim, DE
Magdalena Winkler-Trudewig · Mainz, DE
Uwe Kolberg · Mainz, DE

Key dates

Filing date	Aug 20, 2002
Grant date	Dec 5, 2006
Priority date	—
Expiry date	Aug 20, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C4/02
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention concerns an optical colored glass with a composition (in percent by weight based on oxide) of

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