US PATENT SUBCLASS 501 / 41
.~.~ Nonsilicate oxide glasses

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
11  DF  .~ Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions {11}
41.~.~ Nonsilicate oxide glasses {4}
42  DF  .~.~.~> Germanium containing
43  DF  .~.~.~> Halogen containing {1}
45  DF  .~.~.~> Phosphorus containing {3}
49  DF  .~.~.~> Boron containing {2}

DEFINITION

Classification: 501/41

Nonsilicate oxide glasses:

(under subclass 11) Compositions which contain oxides of elements other than silicon and which do not contain any silica or silicate.