Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Reexamination Certificate
2007-01-23
2007-01-23
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
C501S006000, C106S035000, C065S033100, C065S334000
Reexamination Certificate
active
10973233
ABSTRACT:
Apatite glass ceramic which contains at least one glass phase and at least one apatite phase and is characterized in that at least one of the apatite phases is a phosphate- and fluorine-free siliceous oxyapatite phase.
REFERENCES:
patent: 3710278 (1973-01-01), Hopkins et al.
patent: 4748391 (1988-05-01), Sigai et al.
patent: 4794094 (1988-12-01), Makishima et al.
patent: 4988882 (1991-01-01), Francois et al.
patent: 5952253 (1999-09-01), Dejneka et al.
patent: 6489531 (2002-12-01), Carpena et al.
patent: 2005/0244449 (2005-11-01), Sayer et al.
patent: 44 23 793 (1996-02-01), None
Ito, “Silicate Apatites and Oxyapatites,”The American Mineralogist53:890-907 (1968).
Apel Elke
Bolle Urs
Höland Wolfram
Rheinberger Volker M.
van't Hoen Christian
Group Karl
Ivoclar Vivadent AG
Nixon & Peabody LLP
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