US PATENT SUBCLASS 556 / 133
.~.~.~.~.~ The carbons of plural -C(=X)X- groups are bonded directly to each other, to the same carbon, or to a chain consisting of carbons, which carbons, which carbons may be part of a ring (e.g., zinc glutamates, etc.)

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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}
130  DF  .~.~.~ Chalcogen bonded directly to the metal {2}
131  DF  .~.~.~.~ The chalcogen is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens {3}
133.~.~.~.~.~ The carbons of plural -C(=X)X- groups are bonded directly to each other, to the same carbon, or to a chain consisting of carbons, which carbons, which carbons may be part of a ring (e.g., zinc glutamates, etc.)

DEFINITION

Classification: 556/133

(under subclass 131) Compounds wherein the carbons of at least two -C(=X)X- groups are bonded directly to each other, to the same carbon, or to a chain consisting of carbons, which carbons may be part of a ring.

(1) Note. An example of a compound provided for herein is: [figure]