Patents by Inventor Sujata Jagota

Sujata Jagota 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).

  • Mullite-containing coatings for inorganic fibers and ceramic matrix composites
    Patent number: 6022621
    Abstract: A ceramic matrix composite article comprised of inorganic fibers having a mullite-containing coating disposed within a matrix phase. The invention also provides a method for mating such an article, as well as for preparing a fiber having a mullite-containing coating. The mullite-containing coating on inorganic fibers within a matrix acts as a debonding coating, and the ceramic matrix composite article exhibits high strength and fracture toughness, even at elevated temperatures.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: February 8, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Eugene Michael McCarron, III, Mark Andrew Harmer, Sujata Jagota
  • Producing alpha-alumina whiskers
    Patent number: 4806198
    Abstract: Alpha-alumina whiskers are produced by forming a film of boehmite gel seeded with alpha-alumina seed material, preferably sapphire, and heating at 900.degree. C. to 1200.degree. C. for 5 minutes to 2 hours.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: February 21, 1989
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Sujata Jagota, Rishi Raj