US PATENT SUBCLASS 44 / 370
.~ Containing organic -S(=O)(=O)O- compound (i.e., sulfonates)

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}
370.~ Containing organic -S(=O)(=O)O- compound (i.e., sulfonates) {4}
371  DF  .~.~> Nitrogen or -C(=X)-, wherein X is chalcogen, attached indirectly to the sulfonate group by nonionic bonding
372  DF  .~.~> Hydrazine or organic nitrogen compound salts of sulfonic acids
373  DF  .~.~> Overbased sulfonate or carbonated alkaline earth metal sulfonate
374  DF  .~.~> With organic -C(=O)O- compound (e.g., carboxylic acids, esters, etc.)

DEFINITION

Classification: 44/370

Containing organic -S(=O)(=O)O- compound (i.e., sulfonates):

(under subclass 300) Compositions which contain a compound having an organic sulfonate, i.e., -S(=O)(=O)O-, group.

(1) Note. An organic sulfonate group is one wherein the -S(=O)(=O)O- group is attached directly or indirectly to carbon of an organic compound by nonionic bonding. See Glossary in the class definition for the definition of "organic compound".

(2) Note. An example of an ingredient provided for herein is an alkyl benzene sulfonic acid.