US PATENT SUBCLASS 514 / 194
.~.~.~ 6,6-di-substituted

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}
192  DF  .~.~ 1-thia-4-aza-bicyclo (3.2.0) heptane ring containing (including dehydrogenated) (e.g., penicillins, etc.) {5}
194.~.~.~ 6,6-di-substituted

DEFINITION

Classification: 514/194

6,6-di-substituted:

(under subclass 192) Subject matter wherein the bicyclo heptane ring system contains two substituents other than hydrogen in 6-position.