Patents by Inventor Ronald W. Andrews

Ronald W. Andrews 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).

  • High solids blended kaolin clay slurry
    Patent number: 4888315
    Abstract: A high solids kaolin clay slurry having unexpectedly improved high shear viscosity is prepared by blending a chemically dispersed fine particle size Tertiary kaolin with a coarser particle size Cretaceous kaolin to provide a resultant blend having a controlled particle size range and particle size distribution.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: December 19, 1989
    Assignee: Georgia Kaolin Company, Inc.
    Inventors: James A. Bowman, Ronald W. Andrews