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. 18, 2012
Filed:
Feb. 02, 2009
Richard Michael Fiacco, Corning, NY (US);
Kenneth Edward Hrdina, Horseheads, NY (US);
Rostislav Radievich Khrapko, Corning, NY (US);
Lisa Anne Moore, Corning, NY (US);
Charlene Marie Smith, Corning, NY (US);
Richard Michael Fiacco, Corning, NY (US);
Kenneth Edward Hrdina, Horseheads, NY (US);
Rostislav Radievich Khrapko, Corning, NY (US);
Lisa Anne Moore, Corning, NY (US);
Charlene Marie Smith, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A fused silica glass having a refractive index homogeneity of less or equal to about 5 ppm over an aperture area of at least about 50 cm. The fused silica glass is also substantially free of halogens and has an adsorption edge of less than about 160 nm. The glass is dried by exposing a silica soot blank to carbon monoxide before consolidation, reducing the combined concentration of hydroxyl (i.e., OH, where H is protium (H) and deuteroxyl (OD), where D is deuterium (H)) of less than about 20 ppm by weight in one embodiment, less than about 5 ppm by weight in another embodiment, and less than about 1 ppm by weight in a third embodiment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile