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:
Apr. 08, 1997
Filed:
Jul. 27, 1995
Applicant:
Inventors:
Martin Frank, Schaan, DE;
Susanne Wegner, Lindau, DE;
Volker Rheinberger, Vaduz, DE;
Wolfram Hoeland, Schaan, DE;
Assignee:
Ivoclar AG, , LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; A61K / ;
U.S. Cl.
CPC ...
501-5 ; 501-6 ; 501 57 ; 501 63 ; 501 64 ; 501 69 ; 501 70 ; 501 72 ; 106 35 ; 65 331 ;
Abstract
Alkali-zinc-silicate glass ceramics and glasses are described which have a linear thermal expansion coefficient in the range from 8.0 to 18.7.times.10.sup.-6 K.sup.-1, an excellent chemical resistance and other advantageous optical properties and can be used in particular as dental material.