Patent · US Expired

Super paramagnetic fluids and methods of making super paramagnetic fluids

US4741850A · kind A · utility

15Cited by
22References
13Claims
0Family size

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Key dates

Filing dateJul 30, 1987
Grant dateMay 3, 1988
Priority date
Expiry dateJul 30, 2007

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01F1/44
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Super paramagnetic fluids having improved thermal and oxidative stability and processes for making super paramagnetic fluids having improved thermal and oxidative stability.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.