US PATENT SUBCLASS 423 / 413
.~ Hydrogen containing (e.g., amide, imide, etc.)

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}
413.~ Hydrogen containing (e.g., amide, imide, etc.)

DEFINITION

Classification: 423/413

(under subclass 351) Products or processes in which the product contains hydrogen.

(1) Note. Examples of compounds found in this subclass are: Amides (-NH2) and imides (-NH).