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:
Jul. 31, 2012
Filed:
May. 23, 2011
Applicants:
Guangjun Xu, Mayfield Heights, OH (US);
Larry Zeng, Strongsville, OH (US);
Ivo Flammer, Paris, FR;
Dennis Robert Simons, Eindhoven, NL;
Cedric Gonnet, Paris, FR;
Rob Hubertus Matheus Deckers, Eindhoven, NL;
Inventors:
Guangjun Xu, Mayfield Heights, OH (US);
Larry Zeng, Strongsville, OH (US);
Ivo Flammer, Paris, FR;
Dennis Robert Simons, Eindhoven, NL;
Cedric Gonnet, Paris, FR;
Rob Hubertus Matheus Deckers, Eindhoven, NL;
Assignee:
Draka Comteq, B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 37/012 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a method of heat treating quartz glass deposition tubes at between 900° C. and 1200° C. for at least 115 hours. The resulting deposition tubes are useful in forming optical preforms that can yield optical fibers having reduced added loss.