Compositions: ceramic – Ceramic compositions – Refractory
Reexamination Certificate
2004-05-28
2010-02-02
Lorengo, Jerry (Department: 1793)
Compositions: ceramic
Ceramic compositions
Refractory
C106S035000, C433S201100, C433S202100, C433S218000
Reexamination Certificate
active
07655586
ABSTRACT:
Dental articles are produced using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powders may include sintering agents, binders and other similar additives to aid in the processing of the ceramic powder into a dental article. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cad/camming and other various rapid prototyping methods. The ceramic powder may be formed into a suspension, pellet, feedstock material or a pre-sintered blank prior to forming into the dental article.
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Brodkin Dmitri
Gamarnik Moisey Y.
Bond Schoeneck & King , PLLC
Knab Ann M.
Lorengo Jerry
McGuire George R.
Pentron Ceramics, Inc.
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