Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Reexamination Certificate
2006-02-17
2008-05-13
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
C065S033300, C106S035000, C433S228100
Reexamination Certificate
active
07371702
ABSTRACT:
Radio-opaque glass ceramics are described which have high chemical durability and adjustable translucency, brightness and coefficient of thermal expansion.
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patent: 6200137 (2001-03-01), Holand et al.
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patent: 06039031 (1994-02-01), None
Apel Elke
Holand Wolfram
Rheinberger Volker M.
Ritzberger Christian
Group Karl
Ivoclar Vivadent AG
Nison Peabody LLP
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