Patents by Inventor Glen Clifton Barris

Glen Clifton Barris 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).

  • Ceramic production process
    Patent number: 5851943
    Abstract: A process for the production of O'--SIALON ceramics from silicon metal, nitrogen and clay, the process comprising heating the silicon metal and the clay in a flowing nitrogen atmosphere to a temperature sufficient to react the components to form O'--SIALON and wherein the clay participates in the reaction as a source of aluminum and silicon.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: December 22, 1998
    Assignees: Industrial Research Limited, Pryotek Products Limited
    Inventors: Glen Clifton Barris, Gregory Michael Hodren
  • Ceramic material
    Patent number: 5834389
    Abstract: The invention is directed to a silicon oxynitride ceramic material characterised by the following relative intensities and d spacings for the most intense X-ray powder diffraction peaks:______________________________________ d.ANG. I ______________________________________ 4.421 66 3.414 39 3.329 100 2.686 24 2.416 51 2.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: November 10, 1998
    Assignee: Industrial Research Limited
    Inventors: Glen Clifton Barris, Carolyn Mary Sheppard