US PATENT SUBCLASS 514 / 686
.~.~.~.~.~ Two benzene rings bonded directly to the same C=O

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}
675  DF  .~ Ketone DOAI {3}
678  DF  .~.~ Benzene ring containing {2}
679  DF  .~.~.~ Plural rings {3}
685  DF  .~.~.~.~ C=O bonded directly to benzene ring {1}
686.~.~.~.~.~ Two benzene rings bonded directly to the same C=O {1}
687  DF  .~.~.~.~.~.~> Oxygen single bonded to carbon

DEFINITION

Classification: 514/686

Two benzene rings bonded directly to the same C=O:

(under subclass 685) Subject matter wherein two benzene rings are directly bonded to the same group.