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:
Sep. 09, 2025
Filed:
May. 31, 2023
Applicant:
Corning Incorporated, Corning, NY (US);
Inventors:
Timothy Michael Gross, Painted Post, NY (US);
Peter Joseph Lezzi, Corning, NY (US);
Assignee:
CORNING INCORPORATED, Corning, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/097 (2006.01); C03B 27/012 (2006.01); C03C 3/091 (2006.01);
U.S. Cl.
CPC ...
C03C 3/097 (2013.01); C03B 27/012 (2013.01); C03C 3/091 (2013.01);
Abstract
The disclosure relates to glass compositions with high coefficients of thermal expansion and low fracture toughness designed for thermal tempering. These glasses are ideally suited to produce a 'dicing' pattern when thermally tempered, even when thin (<3 mm). Disclosed glasses have high thermal expansions at low and high temperatures to produce increased temper stresses once quenched, coupled with low fracture toughness which promotes crack bifurcation and enhanced frangibility. Methods of making such glasses are also provided.