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. 23, 2025
Filed:
Aug. 28, 2020
Corning Incorporated, Corning, NY (US);
Naigeng Chen, San Jose, CA (US);
Matthew Wade Fenton, Elmira, NY (US);
Timothy Michael Gross, Painted Post, NY (US);
Yuhui Jin, Painted Post, NY (US);
Dhananjay Joshi, Painted Post, NY (US);
Kuan-Ting Kuo, Chubei, TW;
Yousef Kayed Qaroush, Painted Post, NY (US);
CORNING INCORPORATED, Corning, NY (US);
Abstract
Foldable apparatus can comprise a foldable substrate comprising a substrate thickness and a central portion positioned between a first portion and a second portion. The central portion can comprise a central thickness less than the substrate thickness. A first maximum tensile stress of a first tensile stress region in the first portion and a second maximum tensile stress of the second tensile stress region in the second portion can be less than a third maximum tensile stress of a central tensile stress region in the central portion. Ribbons can comprise a ribbon thickness and a central portion positioned between a first portion and a second portion. The central portion can comprise a first central compressive stress region and a second central compressive stress region. In some embodiments, methods of processing a ribbon can comprise masking the first portion, masking the second portion, and chemically strengthening the central portion.