Patents by Inventor Nicolas Raffin

Nicolas Raffin 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).

  • Chromium oxide product
    Patent number: 10294434
    Abstract: A sintered refractory product having a granulate bonded by a matrix and comprising, in percentages by mass based on the oxides, —more than 40% chromium oxide Cr2O3, —less than 50% aluminium oxide Al2O3, ?1% or more zirconium oxide ZrO2, of which at least 20% by mass is stabilised in the cubic and/or quadratic form, ?0.1% or more yttrium oxide Y2O3, acting as a stabiliser for the zirconium oxide ZrO2, —less than 1.9% hafnium oxide HfO2, the total content of chromium, aluminium and zirconium oxides Cr2O2+Al2O3+ZrO2 being greater than 70%.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: May 21, 2019
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Nicolas Raffin, Laurie San Miguel
  • CHROMIUM OXIDE PRODUCT
    Publication number: 20150267133
    Abstract: A sintered refractory product having a granulate bonded by a matrix and comprising, in percentages by mass based on the oxides, —more than 40% chromium oxide Cr2O3, —less than 50% aluminium oxide Al2O3, ?1% or more zirconium oxide ZrO2, of which at least 20% by mass is stabilised in the cubic and/or quadratic form, ?0.1% or more yttrium oxide Y2O3, acting as a stabiliser for the zirconium oxide ZrO2, —less than 1.9% hafnium oxide HfO2, the total content of chromium, aluminium and zirconium oxides Cr2O2+Al2O3+ZrO2 being greater than 70%.
    Type: Application
    Filed: October 15, 2013
    Publication date: September 24, 2015
    Inventors: Nicolas Raffin, Laurie San Miguel
  • PRODUCT OF CHROMIUM OXIDE, ZIRCONIUM OXIDE AND HAFNIUM OXIDE
    Publication number: 20140030163
    Abstract: Sintered refractory product including, in percentages by weight on the basis of the oxides, —more than 10% of chromium oxide Cr2O3, —more than 2% of hafnium oxide HfO2, —more than 1% of zirconium oxide ZrO2, the total content of chromium, hafnium and zirconium oxides Cr2O3+HfO2+ZrO2 being greater than 70%.
    Type: Application
    Filed: April 13, 2012
    Publication date: January 30, 2014
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux, Thibault Champion, Nicolas Raffin, Laurie San Miguel
  • Impregnated ceramic foam made of recrystallized silicon carbide
    Patent number: 8043694
    Abstract: Porous ceramic part comprising a porous ceramic foam having a total porosity of between 50 and 92% and an intergranular porosity of at least 5%, walls of at least some of the cells of the ceramic foam being at least partly covered with an impregnation material. The invention relates in particular to a recrystallized silicon carbide foam impregnated with silicon.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: October 25, 2011
    Assignee: Saint Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Christian Claude His, Franceline Villermaux, Nicolas Raffin, Michel Dussaulx
  • IMPREGNATED CERAMIC FOAM MADE OF RECRYSTALLIZED SILICON CARBIDE
    Publication number: 20090305017
    Abstract: Porous ceramic part comprising a porous ceramic foam having a total porosity of between 50 and 92% and an intergranular porosity of at least 5%, walls of at least some of the cells of the ceramic foam being at least partly covered with an impregnation material. The invention relates in particular to a recrystallized silicon carbide foam impregnated with silicon.
    Type: Application
    Filed: January 30, 2007
    Publication date: December 10, 2009
    Applicant: Saint-Gobain Centre De Recherches Et d'Etudes Europeen
    Inventors: Christian Claude His, Franceline Villermaux, Nicolas Raffin, Michel Dussaulx