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:
Jul. 27, 2021
Filed:
Nov. 21, 2019
Corning Incorporated, Corning, NY (US);
LA Corporation DE L'ecole Polytechnique DE Montreal, Montréal, CA;
Bill Baloukas, Montreal, CA;
Robert Alan Bellman, Ithaca, NY (US);
Shandon Dee Hart, Elmira, NY (US);
Karl William Koch, III, Elmira, NY (US);
Carlo Anthony Kosik Williams, Painted Post, NY (US);
Ludvik Martinu, Montreal, CA;
Charles Andrew Paulson, Painted Post, NY (US);
James Joseph Price, Corning, NY (US);
Jincheng Qian, Montreal, CA;
Corning Incorporated, Corning, NY (US);
La Corporation de I'Ecole Polytechnique de Montreal, Quebec, CA;
Abstract
An article includes: a transparent substrate having a primary surface; and a protective film disposed on the primary surface, such that each of the substrate and the protective film have an optical transmittance of 20% or more in the visible spectrum, and such that the protective film includes at least one of: (1) a hardness of greater than 13 GPa, as measured by a Berkovich nanoindenter, or (2) an effective fracture toughness (Kc) of greater than 2.5 MPa·m, as measured by indentation fracture at a depth of greater than 1 μm.