Patents by Inventor Emmanuel Jean-Marie Sertain

Emmanuel Jean-Marie Sertain 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).

  • Fused cast products based on alumina-zirconia-silica with an improved microstructure
    Patent number: 6576580
    Abstract: Oxidized alumina-zirconia-silica (AZS) refractories containing 40 wt % to 55 wt % Al2O3, 32 wt % to 45 wt % ZrO2, 10 wt % to less than 16 wt % SiO2 and 1 wt % to 3 wt % of an alkali metal oxide selected from Na2O, K2O and mixtures thereof have a microstructure essentially comprising alpha-alumina crystals, free zirconia crystals, eutectic crystals and an intercrystalline vitreous phase. At least in an active area, more than 20% by number of the free zirconia crystals have a dendritic shape and are interleaved with each other and with eutectic crystals and at least 40% by number of the dendritic free zirconia crystals have a dimension greater than 300 &mgr;m.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: June 10, 2003
    Assignee: Societe Europeenne des Produits Refractaires
    Inventors: Michel Marc Gaubil, Yves Marcel Léon Boussant-Roux, Emmanuel Jean-Marie Sertain, Alain Paul Bernard Zanoli
  • Fused cast products based on alumina zirconia-silica with an improved microstructure
    Publication number: 20010019992
    Abstract: Oxidized alumina-zirconia-silica (AZS) refractories containing 40 wt % to 55 wt % Al2O3, 32 wt % to 45 wt % ZrO2, 10 wt % to less than 16 wt % SiO2 and 1 wt % to 3 wt % of an alkali metal oxide selected from Na2O, K2O and mixtures thereof have a microstructure essentially comprising alpha-alumina crystals, free zirconia crystals, eutectic crystals and an intercrystalline vitreous phase. At least in an active area, more than 20% by number of the free zirconia crystals have a dendritic shape and are interleaved with each other and with eutectic crystals and at least 40% by number of the dendritic free zirconia crystals have a dimension greater than 300 &mgr;m.
    Type: Application
    Filed: January 30, 2001
    Publication date: September 6, 2001
    Applicant: SOCIETE EUROPEENNE DES PRODUITS REFRACTAIRES
    Inventors: Michel Marc Gaubil, Yves Marcel Leon Boussant-Roux, Emmanuel Jean-Marie Sertain, Alain Paul Bernard Zanoli