US PATENT SUBCLASS 568 / 335
.~.~.~.~ Carbonyl bonded directly to benzene ring (i.e., acetophenones)

Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
303  DF  .~.~ Ketones {10}
308  DF  .~.~.~ Benzene ring containing {3}
335.~.~.~.~ Carbonyl bonded directly to benzene ring (i.e., acetophenones) {1}
336  DF  .~.~.~.~.~> Oxy containing {1}

DEFINITION

Classification: 568/335

(under subclass 308) Compounds wherein is bonded directly to the benzene ring.