US PATENT SUBCLASS 568 / 13
.~.~ Sulfur or 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}
8  DF  .~ PHOSPHORUS CONTAINING {5}
13.~.~ Sulfur or oxygen containing {1}
14  DF  .~.~.~> Sulfur or oxygen bonded directly to phosphorus {1}


DEFINITION

Classification: 568/13

(under subclass 8) Compounds which contain sulfur or oxygen.