Patents by Inventor Michael S. Kerns

Michael S. Kerns 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).

  • Processes for the separation of ores
    Patent number: 9567655
    Abstract: Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: February 14, 2017
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Michael S. Kerns, Pablo G. Dopico, John B. Hines
  • GYPSUM COMPOSITE MODIFIERS
    Publication number: 20150158998
    Abstract: Methods for making composite products and methods for their use and manufacture are provided. In at least one specific embodiment, alpha-derived anhydrite calcium sulfate whiskers and a plastic can be combined to produce a composite product.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Applicant: FLINT HILLS RESOURCES, LP
    Inventors: Pierre Donaldson, Bill Bodiford, Michael S. Kerns, Mianxue Wu, Jeffrey T. Fields
  • PROCESSES FOR THE SEPARATION OF ORES
    Publication number: 20140110621
    Abstract: Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 24, 2014
    Applicant: Georgia-Pacific Chemicals LLC
    Inventors: Michael S. Kerns, Pablo G. Dopico, John B. Hines