US PATENT SUBCLASS 423 / 396
.~.~.~ Ammonium containing

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

351  DF  NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) {5}
385  DF  .~ Oxygen containing {4}
395  DF  .~.~ Nitrate {3}
396.~.~.~ Ammonium containing

DEFINITION

Classification: 423/396

(under subclass 395) Products or processes wherein the product contains the ammonium (NH4[end subscrpt][supscrpt]+[end supscrpt]) radical.