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:
Feb. 10, 2015
Filed:
May. 08, 2013
Applicant:
Corning Incorporated, Corning, NY (US);
Inventors:
Timothy Edward Myers, Painted Post, NY (US);
Shyamala Shanmugam, Painted Post, NY (US);
Alan Thomas Stephens, II, Beaver Dams, NY (US);
Matthew John Towner, Campbell, NY (US);
Kevin William Uhlig, Horseheads, NY (US);
Lu Zhang, Painted Post, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 13/06 (2006.01); C09K 13/08 (2006.01); C03C 15/00 (2006.01); C03C 15/02 (2006.01);
U.S. Cl.
CPC ...
C09K 13/08 (2013.01); C03C 15/00 (2013.01); C03C 15/02 (2013.01); C03C 2218/34 (2013.01);
Abstract
A glass etching medium and a method for etching the surface of a glass sheet to modify surface flaw characteristics without degrading the optical quality of the sheet surface, wherein the etching medium is a thickened aqueous acidic fluoride-containing paste comprising at least one dissolved, water-soluble, high-molecular-weight poly (ethylene oxide) polymer thickener.