US PATENT SUBCLASS 556 / 101
.~.~.~.~.~.~ Organic chalcogen containing compound or additional organic halogen containing utilized

Current as of: June, 1999
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556 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
1  DF  .~ HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) {19}
81  DF  .~.~ Germanium, tin, or lead containing (Ge, Sn, or Pb) {6}
87  DF  .~.~.~ Carbon bonded directly to the metal {2}
95  DF  .~.~.~.~ The compound consists of the metal, carbon and hydrogen or the metal, carbon, hydrogen and halogen (e.g., tetraalkylleads, etc.) {6}
98  DF  .~.~.~.~.~ Preparing by reacting free heavy metal or heavy metal containing alloy with hydrocarbyl halide (e.g., reacting Pb-Na alloy with hydrocarbyl chloride, etc.) {3}
101.~.~.~.~.~.~ Organic chalcogen containing compound or additional organic halogen containing utilized

DEFINITION

Classification: 556/101

(under subclass 98) Processes wherein an organic chalcogen containing compound or an additional halogen containing compound is utilized in any way, e.g., as a catalyst, accelerator, solvent, etc.