Patents by Inventor Patricia De Bruycker

Patricia De Bruycker 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).

  • Process for the manufacture of a powder of mixed metal oxides, and mixed metal oxide powders
    Patent number: 5152974
    Abstract: Process for the manufacture of a powder of mixed metal oxides by cohydrolysis of metal alcoholates in the presence of an acidic organic compound and mixed metal oxide powders in which the molar relationships R1 and R2 of a metal oxide to the sum of the metal oxides in the powder and in a particle of the powder are such that ##EQU1## The process applies especially well to powders of zirconia doped with yttrium oxide or other oxides.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: October 6, 1992
    Assignee: Solvay S.A.
    Inventors: Franz Legrand, Luc Lerot, Patricia De Bruycker
  • Process for the manufacture of a powder of mixed metal oxides, and mixed metal oxide powders
    Patent number: 4929436
    Abstract: Process for the manufacture of a powder of mixed metal oxides by cohydrolysis of metal alcoholates in the presence of an acidic organic compound and mixed metal oxide powders in which the molar relationships R.sub.1 and R.sub.2 of a metal oxide to the sum of the metal oxides in the powder and in a particle of the powder are such that ##EQU1## The process applies to powders of zirconia doped with yttrium oxide.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: May 29, 1990
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Franz Legrand, Luc Lerot, Patricia De Bruycker
  • Process for the manufacture of a powder for ceramic materials, containing at least one metal oxide
    Patent number: 4798710
    Abstract: A metal alcoholate is treated with a quantity of water such that the molar ratio of the quantity of water to the quantity of metal alcoholate is lower than the valency of the metal in the alcoholate.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: January 17, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Franz Legrand, Patricia De Bruycker