US PATENT SUBCLASS 44 / 324
.~.~ Nitrates or Thionitrates (i.e., -X-N(=O)(=O) bonded directly to carbon)

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}
323  DF  .~ Containing -X-N(=X) or -X-N(=X)(=X) bonded directly to carbon, wherein the X's are the same or diverse chalcogens (e.g., thionitrite esters, etc.) {1}
324.~.~ Nitrates or Thionitrates (i.e., -X-N(=O)(=O) bonded directly to carbon) {2}
325  DF  .~.~.~> With organic non-nitrate nitrogen compound
326  DF  .~.~.~> With organic non-nitrate chalcogen compound

DEFINITION

Classification: 44/324

Nitrates or thionitrates (i.e., -X-N(=O) (=O) bonded directly to carbon):

(under subclass 323) Compositions which contain a compound wherein carbon is bonded directly to an -X-N(=O)(=O) group, wherein X is oxygen or sulfur.

(1) Note. Nitrate esters and thionitrate esters are the principal substances provided for herein.

(2) Note. The ingredients provided for by this subclass generally exhibit cetane-improving properties in diesel fuels.