Patents Assigned to Omni Quest Corporation
  • Superparamagnetic liquid colloids
    Patent number: 5147573
    Abstract: Electrically-conductive superparamagnetic liquid colloids and methods for making and using them are described. The magnetic liquid colloids contain magnetic particles coated with conductive, organio-metallic compund, which impart the magnetic and conductive characteristics to the fluid. The coated magnetic particles are dispersed in a carrier fluid that gives the fluid viscosity, flow and vapor pressure properties.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: September 15, 1992
    Assignee: Omni Quest Corporation
    Inventor: Mark S. Chagnon
  • Method for producing magnetic microparticles from metallocenes
    Patent number: 5071076
    Abstract: A novel method for producing magnetic microparticles from metallocenes is disclosed. The method involves combining an aqueous slurry of the metallocene and an aqueous slurry of a metal hydroxide and milling the slurries together. Fine magnetic particles are produced using the present method.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: December 10, 1991
    Assignee: Omni Quest Corporation
    Inventors: Mark S. Chagnon, Tracy Hamilton, John R. Ferris
  • High coercivity magnetic inks and method for making same
    Patent number: 4944802
    Abstract: Magnetic inks useful for the production of magnetic recording products are disclosed. The present magnetic inks contain ferromagnetic barium ferrite particles dispersed in a flexible polymer medium.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: July 31, 1990
    Assignee: Omni Quest Corporation
    Inventors: Mark S. Chagnon, John R. Ferris