Patents by Inventor Nathalie Niveau

Nathalie Niveau 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).

  • Refractory article and production process thereof
    Patent number: 9388081
    Abstract: The present invention relates to refractory articles in general having improved surface properties. The objective of the invention is to propose an improvement of the refractory articles comprised of a fused silica matrix which will overcome the some of the defects while keeping the excellent known properties of the fused silica matrix. This objective is reached when a sintered ceramic phase is present in the porosity of at least a portion of at least a surface of the matrix. The present invention also relates to a process for producing such an article.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: July 12, 2016
    Assignee: VESUVIUS CRUCIBLE COMPANY
    Inventors: Nathalie Niveau, Gilbert Rancoule
  • Refractory Article and Production Process Thereof
    Publication number: 20090160108
    Abstract: The present invention relates to refractory articles in general having improved surface properties. The objective of the invention is to propose an improvement of the refractory articles comprised of a fused silica matrix which will overcome the some of the defects while keeping the excellent known properties of the fused silica matrix. This objective is reached when a sintered ceramic phase is present in the porosity of at least a portion of at least a surface of the matrix. The present invention also relates to a process for producing such an article.
    Type: Application
    Filed: May 14, 2007
    Publication date: June 25, 2009
    Applicant: VESUVIUS CRUCIBLE COMPANY
    Inventors: Nathalie Niveau, Gilbert Rancoule