Patents by Inventor Stephen R. Tan

Stephen R. Tan 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).

  • Production of beta-alumina
    Patent number: 4151235
    Abstract: A method of producing a beta-alumina ceramic article containing a doping addition of magnesium oxide or of magnesium oxide and lithium oxide, comprising the steps of wet-milling a precursor material or emulsification of an already powdered precursor material to form an aqueous slurry, spray-drying the slurry to produce a powder, forming the powder into a green shape and sintering the shape, wherein the precursor material contains at least some of the magnesium oxide in the form of magnesium aluminate.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: April 24, 1979
    Assignee: Chloride Silent Power Limited
    Inventors: Geoffrey J. May, Stephen R. Tan