The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1993
Filed:
Aug. 14, 1991
Ripudaman Malhotra, San Carlos, CA (US);
Donald C Lorents, Palo Alto, CA (US);
Young K Bae, Fremont, CA (US);
SRI International, Menlo Park, CA (US);
Abstract
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.