US PATENT SUBCLASS 568 / 39
.~.~.~ Oxygen 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}
18  DF  .~ SULFUR CONTAINING {9}
38  DF  .~.~ Thioethers {5}
39.~.~.~ Oxygen containing {6}
40  DF  .~.~.~.~> Group IA or IIA light metal containing
41  DF  .~.~.~.~> Carbonyl containing (e.g., aldehyde containing, etc.) {1}
44  DF  .~.~.~.~> Nitrogen containing
45  DF  .~.~.~.~> Plural oxygens containing {3}
51  DF  .~.~.~.~> Oxygen bonded directly to a ring {2}
55  DF  .~.~.~.~> Hydroxy containing


DEFINITION

Classification: 568/39

(under subclass 38) Compounds which contain oxygen.