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:
Aug. 29, 2017
Filed:
Jun. 20, 2014
Corning Incorporated, Corning, NY (US);
Robert Carl Burket, Elkland, PA (US);
Benedict Yorke Johnson, Horseheads, NY (US);
Samuel Odei Owusu, Horseheads, NY (US);
Tammy Lynn Petriwsky, Elmira, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method etching a glass material comprises providing an etchant comprising 10-30% HF, 5-15% HNO,and at least 10% HPOby volume constituted such that the ratio HF:HNOby volume is in the range of 1.7:1 to 2.3:1, providing a glass material to be etched, and contacting the glass material with the etchant. The etchant desirably has no other acid components. The method may be performed with the etchant temperature within the range of 20-30° C. The glass material may be an aluminosilicate glass. Ultrasound energy may be applied to the etchant, to the glass material, or both.