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. 10, 2019
Filed:
Sep. 27, 2017
Applicant:
Dentsply Sirona Inc., York, PA (US);
Inventors:
Markus Vollmann, Gelnhausen, DE;
Irmgard Wissel, Freigericht, DE;
Marcel Meegdes, Russelsheim, DE;
Carsten Wiesner, Rockenberg, DE;
Assignee:
DENTSPLY SIRONA Inc., York, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); A61C 13/00 (2006.01); C03B 32/02 (2006.01); C03C 4/00 (2006.01); C03C 3/097 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0027 (2013.01); A61C 13/0022 (2013.01); C03B 32/02 (2013.01); C03C 3/097 (2013.01); C03C 4/0021 (2013.01); C03C 2204/00 (2013.01);
Abstract
The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains AlOat 1.5 to 3.5 percent by weight, and KO at 0.6 to 1.8 percent by weight.