US PATENT SUBCLASS 423 / 312
.~.~.~.~ Alkali metal or ammonium containing


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

299  DF  PHOSPHORUS OR COMPOUND THEREOF {5}
304  DF  .~ Oxygen containing {2}
305  DF  .~.~ Metal or ammonium containing {5}
311  DF  .~.~.~ Orthophosphate {1}
312.~.~.~.~ Alkali metal or ammonium containing {1}
313  DF  .~.~.~.~.~> Utilizing phosphoric acid as reactant


DEFINITION

Classification: 423/312

(under subclass 311) Products or processes wherein the product contains lithium, sodium, potassium, rudidium, cesium or the ammonium (NH4[supscrpt]+[end supscrpt]) radical.