US PATENT SUBCLASS 568 / 9
.~.~ Phosphonium derivative

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}
8  DF  .~ PHOSPHORUS CONTAINING {5}
9.~.~ Phosphonium derivative {2}
10  DF  .~.~.~> Plural phosphori containing
11  DF  .~.~.~> Sulfur or oxygen containing

DEFINITION

Classification: 568/9

(under subclass 8) Compounds wherein at least one hydrogen of the phosphonium radical PH4 is substituted by an organic radical.