US PATENT SUBCLASS 514 / 754
.~.~.~.~ Plural benzene rings

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}
743  DF  .~ Halogenated hydrocarbon DOAI {7}
747  DF  .~.~ Carbocyclic {3}
751  DF  .~.~.~ Benzene ring containing {3}
754.~.~.~.~ Plural benzene rings

DEFINITION

Classification: 514/754

Plural benzene rings:

(under subclass 751) Subject matter wherein the compound contains at least two benzene rings.