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:
Oct. 18, 2011
Filed:
Oct. 26, 2001
Steven B. Dawes, Corning, NY (US);
Daniel W. Hawtof, Painted Post, NY (US);
Michael T. Murtagh, Horseheads, NY (US);
John S. Rosettie, Corning, NY (US);
Andrew P. Schermerhorn, Corning, NY (US);
Merrill F. Sproul, Big Flats, NY (US);
John Stone, Iii, Painted Post, NY (US);
Pushkar Tandon, Corning, NY (US);
Steven B. Dawes, Corning, NY (US);
Daniel W. Hawtof, Painted Post, NY (US);
Michael T. Murtagh, Horseheads, NY (US);
John S. Rosettie, Corning, NY (US);
Andrew P. Schermerhorn, Corning, NY (US);
Merrill F. Sproul, Big Flats, NY (US);
John Stone, III, Painted Post, NY (US);
Pushkar Tandon, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method of manufacturing an optical waveguide preform includes providing a first process gas atmosphere to a soot preform contained in a vessel. The first atmosphere is held in the vessel for a first reacting time sufficient to at least partially dope or dry the soot preform. The vessel is then at least partially refilled with a second doping or drying atmosphere. The second doping or drying atmosphere is held in the vessel for a second reacting time sufficient to further dope or dry the soot preform.