US PATENT SUBCLASS 514 / 566
.~.~.~.~.~ Polycarboxylic acid

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
553  DF  .~ Radical -XH acid, or anhydride, acid halide or salt thereof (X is chalcogen) DOAI {6}
557  DF  .~.~ Carboxylic acid, percarboxylic acid, or salt thereof (e.g., peracetic acid, etc.) {5}
561  DF  .~.~.~ Nitrogen other than as nitro or nitroso nonionically bonded {4}
564  DF  .~.~.~.~ Plural nitrogens nonionically bonded {2}
566.~.~.~.~.~ Polycarboxylic acid

DEFINITION

Classification: 514/566

Polycarboxylic acid:

(under subclass 864) Subject matter wherein the active ingredient has at least two C(=O)-O groups bonded to carbons of the active ingredient.

(1) Note. The O groups can be bonded to the same or different carbons.