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:
Nov. 20, 2012
Filed:
Jul. 28, 2009
Christopher Morton Lee, Corning, NY (US);
Lawrence George Mann, Painted Post, NY (US);
Jose Mario Quintal, Campbell, NY (US);
Yongsheng Yan, Painted Post, NY (US);
Christopher Morton Lee, Corning, NY (US);
Lawrence George Mann, Painted Post, NY (US);
Jose Mario Quintal, Campbell, NY (US);
Yongsheng Yan, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method of chemically strengthening a glass. The method includes ion exchange of the glass in a first bath, followed by immersion in the second bath. The first bath is diluted with an effluent ion. The second bath has a smaller concentration of the effluent ion than the first bath. The method provides a compressive stress at the surface of the glass that is sufficient to arrest flaws introduced by contact forces at the surface of the glass while having sufficiently deep compressive depth-of-layer for high reliability.