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:
Nov. 19, 2002
Filed:
Oct. 04, 2000
Applicant:
Inventors:
J. K. Richard Weber, Arlington Heights, IL (US);
Johan G. Abadie, Chicago, IL (US);
April D. Hixson, Cedar Rapids, IA (US);
Paul C. Nordine, Deerfield, IL (US);
Assignee:
Containerless Research, Inc., Evanston, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/12 ; C03C 3/062 ;
U.S. Cl.
CPC ...
C03C 3/12 ; C03C 3/062 ;
Abstract
A bulk single phase glass comprising 23 molar % to 50 molar % rare earth oxides, RE , and 50 molar % to 77 molar % aluminum oxide, A1 O is provided. The glass contains at least 50 molar % of Al O +RE O and smaller amounts of oxide glass forming agents and other oxides than are found in prior art glasses. The addition of small amounts of lanthanum oxide, La O , prevents phase separation. The single phase glass is useful for optical applications such as lasers and optical amplifiers.