US PATENT SUBCLASS 568 / 73
.~.~.~.~.~.~ Boron, phosphorus, or silicon containing material utilized

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}
61  DF  .~.~ Thiol or mercaptide containing (i.e., -SH or -SM containing where M is a Group IA or IIA light metal) {5}
69  DF  .~.~.~ Acyclic {1}
70  DF  .~.~.~.~ Preparing by reacting hydrogen sulfide or a metal hydrosulfide {2}
72  DF  .~.~.~.~.~ And a reactant having carbon to carbon unsaturation {1}
73.~.~.~.~.~.~ Boron, phosphorus, or silicon containing material utilized

DEFINITION

Classification: 568/73

(under subclass 72) Processes wherein a material containing boron, phosphorus, or silicon is utilized in any way, e.g., as a catalyst, reactant, etc.