Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Bruce Gardiner Aitken0
Lothar Wondraczek0
Date of Patent
March 24, 2009
0Patent Application Number
117121470
Date Filed
February 28, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Bi-containing glass-ceramic material, especially those containing β-quartz and/or β-spodumene solid solutions as the predominant crystalline phase, and the precursor glass material as well as process of making such glass-ceramic material and articles. The glass-ceramic can be made to have a dark color, and essentially to be free of V2O5, As2O3 and Sb2O3.
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