Composition and method of making an element-modified ferrofluid
US7063802B2 · kind B2 · utility
13Cited by
15References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Mar 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An element-modified ferrofluid comprising a base oil, a plurality of magnetic particles covered with at least one surfactant, and an elemental modifier. The elemental modifier is a metal, a metal mixture, an alloy, or a nonmetal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.