(under subclass 14) Products and compositions which are claimed or disclosed for use as fuels.
(1) Note. Many of the patents in this subclass are directed to fuels for supplying heat or to be used in Diesel engines.
SEE OR SEARCH CLASS
44, Fuel and Related Compositions, appropriate subclasses, for fuel compositions which contain nonhydrocarbon additive.
149, Explosive and Thermic Compositions or Charges, for fuels disclosed for use in jet or rocket engines and which comprise a mineral oil and a nonmineral oil material. A mixture of mineral oils only which is a jet fuel is still classified in this class (208).
585, Chemistry of Hydrocarbon Compounds, 1+, especially subclass 14 for a fuel comprising a mineral oil component with a nonmineral oil hydrocarbon component. Those processes of preparing fuel oils which involve a chemical conversion of the mineral oil and subsequent treatment of a known hydrocarbon component, separated therefrom or formed in the process, which may be reblended with the mineral oil components are classified in this class (208) in the subclass providing therefor (see (2) Note to the definition of subclass 14).
