US PATENT SUBCLASS 44 / 345
.~.~.~.~ Carboxylic acid salt of the hetero ring compound, or a free carboxylic acid is present

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

300  DF  LIQUID FUELS (EXCLUDING FUELS THAT ARE EXCLUSIVELY MIXTURES OF LIQUID HYDROCARBONS) {31}
329  DF  .~ Heterocyclic carbon compound containing a hetero ring having chalcogen or nitrogen as the only ring hetero atoms {6}
340  DF  .~.~ The hetero ring contains five members including nitrogen and carbon (e.g., pyrrolidones, porphines, etc.) {4}
342  DF  .~.~.~ Plural nitrogens in the hetero ring (e.g., imidazolines, etc.) {3}
345.~.~.~.~ Carboxylic acid salt of the hetero ring compound, or a free carboxylic acid is present

DEFINITION

Classification: 44/345

Carboxylic acid salt of the hetero ring compound, or a free carboxylic acid is present:

(under subclass 342) Compositions wherein the five-membered hetero ring compound is salified with a carboxylic acid, or exists in mixture with a carboxylic acid.

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