Patents by Inventor Ketharam Annapoorani

Ketharam Annapoorani 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).

  • DOPED ZIRCONIA CERAMIC
    Publication number: 20110230340
    Abstract: The present invention provides the use of a doped zirconia ceramic having a mean grain size of about 190 nm or less and consisting of the tetragonal zirconia crystallographic phase as a hydrothermally stable material or in an application that requires the use of a hydrothermally stable material. The present invention also provides a doped zirconia ceramic having a mean grain size of about 190 nm or less and consisting of tetragonal zirconia which does not undergo detectable tetragonal to monoclinic transformation during aging in moisture in an autoclave at a temperature of up to about 245° C. for up to 504 hours at a pressure of up to 7 bar.
    Type: Application
    Filed: November 27, 2009
    Publication date: September 22, 2011
    Inventors: Jon Binner, Balasubramaniam Vaidhyanathan, Ketharam Annapoorani, Anish Paul
  • Method for Concentrating Nanosuspensions
    Publication number: 20090294357
    Abstract: A method for concentrating a nanosuspension including nanopowder particles suspended in a liquid includes reducing the liquid content of the nanosuspension and controlling the dispersion of the nanopowder particles in the liquid.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 3, 2009
    Inventors: Jonathan Graham Peel Binner, Maria Isabel Santacruz, Ketharam Annapoorani