Patents by Inventor Pierrick Fabien VESPA

Pierrick Fabien VESPA 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).

  • Protective layer for a refractory product
    Patent number: 11878933
    Abstract: A process for treating a fused refractory product including more than 10% by mass of ZrO2, or “base product.” The process includes heating at least a portion of the surface of the product, so as to melt ZrO2 crystals in a superficial region extending to a depth of less than 2000 ?m. The process includes cooling the molten superficial region obtained in the preceding step so as to obtain a protective layer.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 23, 2024
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Isabelle Cabodi, Frédéric Hoffmann, Pierrick Fabien Vespa
  • REFRACTORY PRODUCT HAVING A HIGH CONTENT OF ZIRCONIA
    Publication number: 20220106213
    Abstract: Fused cast refractory product including, as weight percentages on the basis of the oxides and for a total of 100%: ZrO2: balance to 100%, Hf2O: <5%, SiO2: 8.1% to 12.0%, B2O3: 0.20% to 0.90%, Na2O+K2O: 0.40% to 0.80%, Al2O3: 0.3% to 2.0%, Y2O3: <2.0%, Fe2O3+TiO2: <0.6%, and other species: <1.5%.
    Type: Application
    Filed: February 11, 2020
    Publication date: April 7, 2022
    Inventors: Isabelle CABODI, Pierrick Fabien VESPA
  • PROTECTIVE LAYER FOR A REFRACTORY PRODUCT
    Publication number: 20210292211
    Abstract: A process for treating a fused refractory product including more than 10% by mass of ZrO2, or “base product.” The process includes heating at least a portion of the surface of the product, so as to melt ZrO2 crystals in a superficial region extending to a depth of less than 2000 ?m. The process includes cooling the molten superficial region obtained in the preceding step so as to obtain a protective layer.
    Type: Application
    Filed: July 26, 2019
    Publication date: September 23, 2021
    Inventors: Isabelle CABODI, Frédéric HOFFMANN, Pierrick Fabien VESPA