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. 23, 2010
Filed:
Nov. 02, 2005
Larry J. Shelestak, Bairdford, PA (US);
Dennis G. Smith, Butler, PA (US);
James M. Baldauff, Pittsburgh, PA (US);
Larry J. Shelestak, Bairdford, PA (US);
Dennis G. Smith, Butler, PA (US);
James M. Baldauff, Pittsburgh, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A glass composition that includes a base glass composition including: SiOfrom 65 to 75 weight percent, NaO from 10 to 20 weight percent, CaO from 5 to 15 weight percent, MgO from 0 to 5 weight percent, AlOfrom 0 to 5 weight percent, KO from 0 to 5 weight percent and BaO 0 to 1 weight percent, and a colorant and property modifying portion including total iron from 0.25 to 0.9 weight percent, CrOfrom 6 PPM to 400 PPM, ErOfrom 0.3 to 3.0 weight percent, and TiOfrom 0.1 to 0.8 weight percent, wherein the glass composition has a redox ratio ranging from 0.15 to 0.62.