Patents by Inventor Nancy P. Levoy

Nancy P. Levoy 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).

  • Volume-change resistant silicon oxy-nitride or silicon oxy-nitride and silicon nitride bonded silicon carbide refractory
    Patent number: 8003557
    Abstract: A reaction sintered silicon carbide-based product, including a silicon carbide component, a bond component, wherein the bond component includes silicon oxynitride in excess of any silicon nitride of the bond component, and at least one boron component residual to an amount present prior to reaction sintering to cause increased resistance of the reaction sintered silicon carbide-based product to volume change under oxidative stress, and methods of making the same.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: August 23, 2011
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Nancy P. Levoy, Edmund A. Cortellini, Eric Jorge