US PATENT SUBCLASS 556 / 121
.~.~.~ Carbon bonded directly to the metal


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}
118  DF  .~.~ Zinc, cadmium, or mercury containing (Zn, Cd, or Hg) {3}
121.~.~.~ Carbon bonded directly to the metal {3}
122  DF  .~.~.~.~> Chalcogen bonded directly to the metal {2}
128  DF  .~.~.~.~> Cyano, nitrogen or halogen bonded directly to the metal
129  DF  .~.~.~.~> The compound consists of the metal, carbon and hydrogen (e.g., dialkyl zinc, etc.)


DEFINITION

Classification: 556/121

(under subclass 118) Compounds wherein carbon is bonded directly to the metal.