|United States Patent||5,234,475|
|Malhotra, et. al.||Aug. 10, 1993|
|Inventors:||Malhotra; Ripudaman (San Carlos, CA); Lorents; Donald C. (Palo Alto, CA); Bae; Young K. (Fremont, CA).|
|Assignee:||SRI International (Menlo Park, CA).|
|Filed:||Aug. 14, 1991|
|Intl. Cl.:||C10L 1/00; C10L 1/10;|
|U.S. Cl.:||44/282.; 44/281.;|
|Field of Search:||281;282 |
|4,671,800||Jun., 1987||Meyer et al.||44/282|
Kroto et al.; "C(60) : Buckminsterfullerene"; Nature vol. 314 Nov. 1985 pp. 162-163.
Cox et al.; "Characterization of C(60) and C(70) Clusters"; J. Am. Chem. Soc; 1991, 113, 2940-2944.
Extract from Strem Chemicals, Inc. (date unknown).
Haufler et al; "Efficient Production of C(60) (Buckminsterfullerene) C(60) H(36), and the Solvated Buckide Ion"; J. Phys. Chem. 1990 vol. 94.
Bae, Y. K., et al., "Production, Characterization, and Deposition of Carbon Clusters", Symposium on Clusters and Cluster Assembled Materials, Special Session on Buckminsterfullerene, Boston, Mass., Nov. 29, 1990.
Kratschmer, W., et al., "Solid C(60) : A New Form of Carbon", Nature, vol. 347, Sep. 27, 1990, pp. 354-357.
A hydrocarbon fuel is provided with one or more fullerene additives such as, for example, C60, C70, C74, C76, C78, C82, and C84 fullerenes, to serve as an identifying means for the fuel. The particular fullerene additive or additives may varying from the fullerene additive or additives in other fuels both by type as well as by amount or concentration present in the fuel. Thus, for example, if 7 different fullerenes are used in combinations of 1, 2, or 3 fullerenes, and in 5 different concentration amounts, there exists a possibility of as many as 4,935 different combinations of fuels which may all be separately identified by the presence of such combinations of fullerenes therein.