Patents by Inventor Joseph Levay

Joseph Levay 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).

  • Filter aids made from low permeability diatomites
    Patent number: 8410017
    Abstract: Disclosed herein are diatomite filter aid products with enhanced permeabilities and flow characteristics, and methods for enhancing the permeabilities and flow characteristics of very fine grain, low permeability diatomite ore by, in one embodiment, pre-agglomerating the ore in the presence of less than 10% water and then subjecting the pre-agglomerated ore to at least one calcination process. At least one flux may be used in the at least one calcination process. Also disclosed herein is a method of processing diatomite ore suitable for samples with high wet densities or large amounts of fine particulate matter. Also disclosed herein are methods of producing commercially applicable filter aid products from Hungarian diatomite.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 2, 2013
    Assignee: Imerys Filtration Minerals, Inc.
    Inventors: George Asante Nyamekye, Joseph Levay, John Roulston, John Menear
  • FILTER AIDS MADE FROM LOW PERMEABILITY DIATOMITES
    Publication number: 20100248953
    Abstract: Disclosed herein are diatomite filter aid products with enhanced permeabilities and flow characteristics, and methods for enhancing the permeabilities and flow characteristics of very fine grain, low permeability diatomite ore by, in one embodiment, pre-agglomerating the ore in the presence of less than 10% water and then subjecting the pre-agglomerated ore to at least one calcination process. At least one flux may be used in the at least one calcination process. Also disclosed herein is a method of processing diatomite ore suitable for samples with high wet densities or large amounts of fine particulate matter. Also disclosed herein are methods of producing commercially applicable filter aid products from Hungarian diatomite.
    Type: Application
    Filed: November 24, 2008
    Publication date: September 30, 2010
    Applicant: World Minerals, Inc.
    Inventors: George Asante Nyamekye, Joseph Levay, John Roulston, John Menear