Patents by Inventor Geoffrey F. Slaff

Geoffrey F. Slaff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stationary magnetically stabilized fluidized bed for protein separation and purification
    Patent number: 5130027
    Abstract: Magnetically stabilized fluidized bed technology is utilized in conjunction with ion-exchange adsorption/desorption processes in a method and system for isolating proteins from cell lysate. The invention also includes a magnetizable, porous, ion-exchange particle, and a method for producing the same, for use with the stationary magnetically stabilized fluidized bed protein isolation process.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: July 14, 1992
    Assignee: The University of Colorado Foundation, Inc.
    Inventors: Richard D. Noble, Carl A. Koval, Lori Nixon, Geoffrey F. Slaff
  • Method for preparing magnetizable porous particles
    Patent number: 5110624
    Abstract: Magnetizable, porous particles are prepared by contacting a first portion of porous particles with a suspension comprised of magnetite particles, coated with a dispersing agent, and water, removing and discarding the first portion of porous particles, contacting the suspension with a second portion of porous particles, and separating the second portion of porous particles from the suspension. The magnetizable, second portion of porous particles may be ion exchange resin particles used in a magnetically stabilized fluidized bed to isolate proteins from cell lysate.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: May 5, 1992
    Assignee: The University of Colorado Foundation, Inc.
    Inventors: Richard D. Noble, Carl A. Koval, Lori Nixon, Geoffrey F. Slaff
  • Stationary magnetically stabilized fluidized bed for protein separation and purification
    Patent number: 5084169
    Abstract: Magnetically stabilized fluidized bed technology is utilized in conjunction with ion-exchange adsorption/desorption processes in a method and system for isolating proteins from cell lysate. The invention also includes a magnetizable, porous, ion-exchange particle, and a method for producing the same, for use with the stationary magnetically stabilized fluidized bed protein isolation process.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: January 28, 1992
    Assignee: The University of Colorado Foundation, Inc.
    Inventors: Richard D. Noble, Carl A. Koval, Lori Nixon, Geoffrey F. Slaff