Patents by Inventor Curtis L. Manning

Curtis L. Manning 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).

  • Compositions of large particle calcined kaolin clay and methods of making the same
    Patent number: 6103005
    Abstract: The present invention provides compositions, and method for making same, comprising large particle size, calcined kaolin clays that, when used in paint formulations, provide paints having low sheen and good weathering resistance. Compositions of the invention include a composition comprising the pigment produced by a process comprising calcining a feed comprising kaolin having a median equivalent spherical diameter (e.s.d.) as measured on a Sedigraph 5100 of greater than about 2.0 microns and having .ltoreq. about 15% less than 0.5 micron.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: August 15, 2000
    Assignee: Imerys Kaolin, Inc.
    Inventors: Edward J. Sare, Stephen C. Raper, Tommy L. Adkins, Curtis L. Manning