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:
May. 22, 2007
Filed:
Feb. 07, 2005
Applicants:
Ina Mitra, Stadecken-Elsheim, DE;
Jochen Alkemper, Klein-Winternheim, DE;
Inventors:
Ina Mitra, Stadecken-Elsheim, DE;
Jochen Alkemper, Klein-Winternheim, DE;
Assignee:
Schott AG, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/12 (2006.01); C03C 10/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a novel glass ceramic having a low or small average thermal expansion together with good polishability and processability, to the use of the glass ceramic according to the invention, and to optical components made of the glass ceramic. In particular, a glass ceramic is provided which comprises the following composition (in % by weight based on oxide):