Hydrocarbon fuels having one or more fullerenes therein as indentification media
US5234475A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1991 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Aug 14, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/734
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.