US PATENT SUBCLASS 568 / 331
.~.~.~.~.~ Carbonyl bonded directly to benzene ring


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
325  DF  .~.~.~.~ Plural rings containing {3}
331.~.~.~.~.~ Carbonyl bonded directly to benzene ring {2}
332  DF  .~.~.~.~.~.~> Two benzene rings bonded directly to the same carbonyl (i.e., benzophenones) {1}
334  DF  .~.~.~.~.~.~> Chalcones


DEFINITION

Classification: 568/331

(under subclass 325) Compounds which contain a