US PATENT SUBCLASS 514 / 439
.~.~.~.~ Plural hetero atoms in the hetero ring

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.~.~.~.~ Plural hetero atoms in the hetero ring {1}
440  DF  .~.~.~.~.~> Only two ring sulfurs in the hetero ring {2}

DEFINITION

Classification: 514/439

Plural hetero atoms in the hetero ring:

(under subclass 438) Subject matter wherein the hetero ring has at least one ring hetero atom in addition to the ring sulfur.