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.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Nov. 25, 2019
Applicant:
Corning Incorporated, Corning, NY (US);
Inventors:
Indrajit Dutta, Horseheads, NY (US);
Nicholas James Smith, Port Matilda, PA (US);
Assignee:
CORNING INCORPORATED, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); C03C 3/062 (2006.01); C03C 23/00 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0009 (2013.01); C03C 3/062 (2013.01); C03C 23/008 (2013.01); C03C 23/009 (2013.01); C03C 2203/52 (2013.01);
Abstract
A glass glass-ceramic composite comprises a substrate comprising an alkali-containing glass bulk, the bulk comprising AlOand SiOand alkali, and a glass-ceramic surface layer, the surface layer comprising an alkali-depleted glass ceramic comprising AlOand SiOwith at least 5% crystalline phase by volume, wherein the alkali-depleted glass ceramic surface layer comprises a mol % AlOof at least 51%. A method of preparing the composite is also disclosed.