US PATENT SUBCLASS 514 / 442
.~.~.~.~.~.~ Nitrogen bonded directly to the hetero ring by nonionic bonding

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
183  DF  .~ Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O,S,Se or Te) or nitrogen as the only ring hetero atoms DOAI {16}
430  DF  .~.~ Sulfur containing hetero ring {3}
438  DF  .~.~.~ The hetero ring is five-membered {7}
439  DF  .~.~.~.~ Plural hetero atoms in the hetero ring {1}
440  DF  .~.~.~.~.~ Only two ring sulfurs in the hetero ring {2}
442.~.~.~.~.~.~ Nitrogen bonded directly to the hetero ring by nonionic bonding

DEFINITION

Classification: 514/442

Nitrogen bonded directly to the hetero ring by nonionic bonding:

(under subclass 440) Subject matter wherein nitrogen is bonded directly to the hetero ring by nonionic bonding.