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:
Mar. 16, 2010
Filed:
May. 14, 2007
Applicants:
Karthik Sivaraman, Mayfield Village, OH (US);
Shuyi Qin, Shanghai, CN;
Ming Gao, Shanghai, CN;
Inventors:
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/115 (2006.01); H01J 61/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polycrystalline body includes aluminum oxide, magnesium oxide, zirconium oxide, and lutetium oxide. The lutetium oxide is present in an amount of at least 10 ppm of the weight of the ceramic body, and the magnesium and zirconium oxides are present at a molar ratio of from 0.5:1 to 3:1.