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:
Jan. 28, 2010
Applicants:
Simone Monika Ritter, Mainz, DE;
Oliver Hochrein, Mainz, DE;
Sabine Pichler-wilhelm, Landshut, DE;
Inventors:
Assignee:
Schott AG, Mainz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/15 (2006.01); C03C 3/155 (2006.01); C03C 3/112 (2006.01);
U.S. Cl.
CPC ...
Abstract
Zirconium-containing BaO- and PbO-free X-ray opaque glasses having a refractive index nof about 1.57 to about 1.61 and a high X-ray opacity with an aluminum equivalent thickness of at least about 400% are provided. Such glasses are based on a SiO—AlO—LaO—ZrO—CsO system with additions of LiO, NaO, ZnO and/or TaO. Such glasses may be used, in particular, as dental glasses or as optical glasses.