US PATENT SUBCLASS 514 / 430
.~.~ Sulfur containing hetero ring

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.~.~ Sulfur containing hetero ring {3}
431  DF  .~.~.~> The hetero ring has at least seven members
432  DF  .~.~.~> The hetero ring is six-membered {2}
438  DF  .~.~.~> The hetero ring is five-membered {7}

DEFINITION

Classification: 514/430

Sulfur containing hetero ring:

(under subclass 183) Subject matter wherein the hetero ring has sulfur as a ring hetero atom.

(1) Note. Inner sulfonium salts, even when represented in cyclic form are excluded herefrom.