Patents by Inventor Lisa BUTTITTA

Lisa BUTTITTA 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).

  • Publication number: 20180030337
    Abstract: A method of making a sintered ceramic proppant may include providing a ceramic precursor material comprising kaolin clay, 0.2%-2% by weight alkali silicate, and not more than 0.05% by weight polymeric anionic dispersant. The method may further include pelletizing the ceramic precursor and sintering the ceramic precursor pellets for form a sintered ceramic proppant having a specific gravity ranging from 2.40 to 2.57.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 1, 2018
    Inventors: Robert J. PRUETT, Lisa BUTTITTA, Laura JOHNSEN