US PATENT SUBCLASS 568 / 308
.~.~.~ Benzene ring containing


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.~.~.~ Benzene ring containing {3}
309  DF  .~.~.~.~> Processes {8}
325  DF  .~.~.~.~> Plural rings containing {3}
335  DF  .~.~.~.~> Carbonyl bonded directly to benzene ring (i.e., acetophenones) {1}


DEFINITION

Classification: 568/308

(under subclass 303) Compounds which contain a benzene ring.