US PATENT SUBCLASS 423 / 332
.~.~.~ Alkali metal containing (Li, Na, K, Rb, or Cs)

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

324  DF  SILICON OR COMPOUND THEREOF {4}
325  DF  .~ Oxygen containing {2}
326  DF  .~.~ Metal containing (i.e., silicate) {3}
332.~.~.~ Alkali metal containing (Li, Na, K, Rb, or Cs) {2}
333  DF  .~.~.~.~> By precipitating or gelling from silicate solution
334  DF  .~.~.~.~> By heat treating silica and the alkali metal

DEFINITION

Classification: 423/332

(under subclass 326) Products or processes in which the product contains lithium, sodium, potassium, rubidium or cesium (i.e. an alkali metal).