Patents by Inventor Valentino G. Xanthopoulo

Valentino G. Xanthopoulo 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).

  • Ceramics
    Patent number: 4968460
    Abstract: Aqueous dispersions of binders may be used to make a slurry of a ceramic material. The slurry may then be shaped to a green part by conventional techniques such as tape casting. The slurry may be spray dried to give a free flowing powder which may be formed by dry pressing, roll compaction or other similar techniques. The tensile strength of the green part may be increased by subjecting the green part to an energy treatment such as heat or irradiation including ultraviolet (UV), X-rays and electron beams.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: November 6, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Ronald J. Thompson, Nur R. Gurak, Peter L. Josty, Valentino G. Xanthopoulo, James P. Russell
  • Analytical method and apparatus for characterizing latexes
    Patent number: 4747959
    Abstract: Passing a sample of a liquid dispersion or emulsion of solid or immiscible liquid particles through one or more filters having a selected pore size less than 5000 A permits separation of the dispersed phase by particle size and/or separation of the dispersed phase from the continuous phase. The process is applicable to obtaining samples of dispersed particles, particularly latex, for analysis.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: May 31, 1988
    Assignee: Polysar Limited
    Inventors: Susanna M. Ho, Valentino G. Xanthopoulo