Patents by Inventor Luiz Roberto Martins Miranda

Luiz Roberto Martins Miranda 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).

  • Niobium-based compositions and coatings, niobium oxides and their alloys applied by thermal spraying and their use as an anticorrosive
    Patent number: 7651731
    Abstract: The novelty proposed herein describes the application of niobium-based compositions and coatings, niobium oxides and their alloys capable of associations with other oxides and alloys by means of the thermal spraying technique for the purpose of an anticorrosive protection in highly corrosive environments, mainly those which present high temperatures, show presence of gases such as H2S, SO2, CO2, as well as organic and inorganic acids, commonly found in industrial centers.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: January 26, 2010
    Assignee: Coppe/UFRJ-Coordenacao dos Programas de Pos Graduacao de Engenharia da Universidade Federal do Rio de Janeiro
    Inventors: Luiz Roberto Martins Miranda, Ladimir José Carvalho, Antônio Carlos Gonçalves Pereira