US PATENT SUBCLASS 423 / 393
.~.~.~.~ Utilizing nitrogen oxide as reactant

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}
387  DF  .~.~ Hydrogen containing {2}
390.1  DF  .~.~.~ Nitric acid {4}
393.~.~.~.~ Utilizing nitrogen oxide as reactant {1}
394  DF  .~.~.~.~.~> Nitrogen peroxide

DEFINITION

Classification: 423/393

(under subclass 390.1) Processes in which an oxide of nitrogen is used as a reactant.

(1) Note. For this and the indented subclass the "reactant" may or may not be the starting material. The "reactant" may be used to make an intermediate product which is then used to make the desired product or the "reactant" may be used to directly make the desired product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

392, for processes in which ammonia is oxidized to form a nitrogen oxide as an intermediate product.