US PATENT SUBCLASS 556 / 80
.~.~.~.~ Carbocyclic ring bonded directly to the chalcogen

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}
64  DF  .~.~ Arsenic, antimony, or bismuth containing (As, Sb, or Bi) {5}
76  DF  .~.~.~ Chalcogen bonded directly to the metal {2}
80.~.~.~.~ Carbocyclic ring bonded directly to the chalcogen

DEFINITION

Classification: 556/80

(under subclass 76) Compounds wherein a carbocyclic ring is bonded directly to the chalcogen.