US PATENT SUBCLASS 540 / 139
.~.~.~.~ Metal containing

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS {6}
121  DF  .~.~ Azaporphyrins {1}
122  DF  .~.~.~ Phthalocyanines {8}
139.~.~.~.~ Metal containing {1}
140  DF  .~.~.~.~.~> Heavy metal or aluminum containing {2}

DEFINITION

Classification: 540/139

(under subclass 122) Compounds wherein the phthalocyanine ring system is bonded to a metal.

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