US PATENT SUBCLASS 514 / 330
.~.~.~.~.~ C=X bonded directly to the piperidine ring (X is chalcogen)


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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}
277  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbon atoms {11}
315  DF  .~.~.~ Piperidines {2}
317  DF  .~.~.~.~ Additional ring containing {7}
330.~.~.~.~.~ C=X bonded directly to the piperidine ring (X is chalcogen)


DEFINITION

Classification: 514/330

C=X bonded directly to the piperidine ring (X is chalcogen):

(under subclass 317) Subject matter wherein a C=O, C=S, C=Se or C=Te group is bonded directly to the piperidine ring.