The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 28, 2023

Filed:

Nov. 07, 2019
Applicant:

Corning Incorporated, Corning, NY (US);

Inventor:

Paulo Jorge Gaspar Marques, Fontainebleau, FR;

Assignee:

CORNING INCORPORATED, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/068 (2006.01); C03B 13/02 (2006.01); C03B 25/02 (2006.01);
U.S. Cl.
CPC ...
C03C 3/068 (2013.01); C03B 13/02 (2013.01); C03B 25/025 (2013.01);
Abstract

A glass composition is provided. The glass composition includes: 25-40 wt % SiO; 2.5-10 wt % BO; 0-10 wt % AlO; 0-15 wt % LiO; 0-16 wt % of LiO, NaO, and KO in total; 10-25 wt % CaO; 0-15 wt % BaO; 0-5 wt % MgO; 0-5 wt % SrO; 10-30 wt % CaO, BaO, MgO, and SrO in total; 0-7 wt % ZnO; 2-10 wt % ZrO; 2-15 wt % TiO; 5-25 wt % NbO; 0-5 wt % TaO; 5-25 LaO; and 0-5 wt % YO. The glass composition has a refractive index from about 1.74 to about 1.80, a density from about 3.5 g/cmto about 4.0 g/cm, a critical cooling rate from about 1° C./min to about 50° C./min, and a liquidus viscosity greater than 25 Poises.


Find Patent Forward Citations

Marques, Paulo Jorge Gaspar. (2023). High refractive index silicate glass compositions with reduced devitrification kinetics (U.S. Patent No. 11591253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11591253

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