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:
Nov. 02, 2021

Filed:

Nov. 26, 2018
Applicant:

Corning Incorporated, Corning, NY (US);

Inventors:

Chai Hsin Kuang, Taipei, TW;

Sheng Min Lin, New Taipei, TW;

I-Ting Tsai, New Taipei, TW;

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 21/00 (2006.01); C03C 15/00 (2006.01); C03C 19/00 (2006.01);
U.S. Cl.
CPC ...
C03C 21/002 (2013.01); C03C 15/00 (2013.01); C03C 19/00 (2013.01);
Abstract

A method of producing glass-based articles having sections of different thicknesses is provided, where a maximum central tension in a thinner section is less than that of a thicker section. The method includes reducing the thickness of a region of a glass-based article that includes a compressive stress layer extending from a surface to a depth of compression to form a glass-based article with multiple thickness regions, and then ion exchanging the glass-based article to form a stress profile in the thinner region that has a maximum central tension that is less than a maximum central tension of a stress profile of the thicker region. The glass articles produced by the method are also provided.


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