Patents by Inventor Roberto Lùcio Nunes De Carvalho

Roberto Lùcio Nunes De Carvalho 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).

  • Method to increase the adherence of coating materials on ferrous materials
    Patent number: 7226495
    Abstract: Method to increase the adherence of coating materials on ferrous materials, comprising the step of: before the reduction of iron ores and/or on the agglomerates thereof, contacting same with a dispersion containing at least a particulate material, thus forming a composite coating of at least a material that cannot be substantially hardened in the aqueous mean and at least a material that can be hardened in the aqueous mean.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: June 5, 2007
    Assignee: Companhia Vale Do Rio Doce
    Inventors: Josè Murilo Mourão, Camilo Carlos Da Silva, Roberto Lùcio Nunes De Carvalho, Washington Luiz Mafra