Patents by Inventor Márcio Nele De Souza

Márcio Nele De Souza 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).

  • Process for the synthesis of poly (vinyl alcohol) and/or poly (vinyl acetate) with spherical morphology and shell-and-nucleus structure and its use in vascular embolization
    Patent number: 9828452
    Abstract: The present invention describes a process for the synthesis of spherical particles of polyvinyl alcohol—PVA and/or polyvinyl acetate—PVAc with shell nucleus structure from total or partial hydrolysis in a caustic aqueous medium with obtaining particulates of PVA/PVAc with controlled spherical morphology, to be used in vascular embolization.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: November 28, 2017
    Assignees: INSTITUTO ALBERTO LUIZ COIMBRA DE PÓS-GRADUAÇÃO E PESQUISA DE ENGENHARIA—COPPE, FIRST LINE INDUSTRIA E COMMERCIA S/A
    Inventors: José Carlos Costa da Silva Pinto, Mariana Araújo Niemeyer Limeira, Fabricio Machado Silva, Priamo Albuquerque Melo, Márcio Nele De Souza, Galdêncio Espinosa Lopez
  • Method for the microwave treatment of water-in-oil emulsions
    Patent number: 7705058
    Abstract: Method for the microwave emulsion treatment of water-in-oil (W/O) emulsions, including a) determining, for an W/O emulsion the optimum conditions of the variables: water content, salt content, pH value of the aqueous phase, initial temperature, microwave application power, final temperature and drop size distribution to be adjusted in the industrial plant, as a function of the features of the tested crude oil such as viscosity, density, asphaltene content, total acidity, such conditions being those required for obtaining at least 90% separation efficiency of the emulsion in the presence of microwave radiation: b) utilizing such information for the initial adjustment of application conditions of the method to phase separation units in refineries and production units; c) perform on line tests of the variables of step a) of the process response in the streams effluent from separation units, being the response the water content and salt content tests, so as to feedback the information to the best adjustment of th
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: April 27, 2010
    Assignee: Petroleo Brasileiro S.A. — Petrobras
    Inventors: Raquel Campos Coutinho, Montserrat Fortuny Heredia, Márcio Nele De Souza, Alexandre Ferreira Santos
  • Method for the microwave treatment of water-in-oil emulsions
    Publication number: 20080221226
    Abstract: Method for the microwave emulsion treatment of water-in-oil (W/O) emulsions, including a) determining, for an W/O emulsion the optimum conditions of the variables: water content, salt content, pH value of the aqueous phase, initial temperature, microwave application power, final temperature and drop size distribution to be adjusted in the industrial plant, as a function of the features of the tested crude oil such as viscosity, density, asphaltene content, total acidity, such conditions being those required for obtaining at least 90% separation efficiency of the emulsion in the presence of microwave radiation: b) utilizing such information for the initial adjustment of application conditions of the method to phase separation units in refineries and production units; c) perform on line tests of the variables of step a) of the process response in the streams effluent from separation units, being the response the water content and salt content tests, so as to feedback the information to the best adjustment of th
    Type: Application
    Filed: January 7, 2008
    Publication date: September 11, 2008
    Applicant: PETROLEO BRASILEIRO S.A.
    Inventors: Raquel Campos Coutinho, Montserrat Fortuny Heredia, Marcio Nele de Souza, Alexandre Ferreira Santos