US PATENT SUBCLASS 44 / 364
.~.~.~.~ The heavy metal is Cr, Zr, or a lanthanide

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}
354  DF  .~ Aluminum or heavy metal, other than lead, containing {3}
358  DF  .~.~ Organic compound containing the heavy metal or aluminum {8}
363  DF  .~.~.~ Heavy metal or aluminum carboxylate salt or complex {1}
364.~.~.~.~ The heavy metal is Cr, Zr, or a lanthanide

DEFINITION

Classification: 44/364

The heavy metal is Cr, Zr, or a lanthanide:

(under subclass 363) Compositions wherein the heavy metal that forms the salt or complex is chromium, zirconium, or a lanthanide element.

(1) Note. The lanthanide elements are those of atomic numbers 57-61.

(2) Note. An example of an ingredient provided for herein is cerium naphthenate.