Patents by Inventor Carmen M. Rivas

Carmen M. Rivas 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).

  • Biodesulfurization of hydrocarbons
    Patent number: 7338795
    Abstract: A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid hydrocarbon to the bioactive material under effective conditions such that the bioactive material interacts with the complex sulfur compounds and transforms the organic sulfur-containing compounds into inorganic sulfur compounds.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: March 4, 2008
    Assignee: Intevep, S.A.
    Inventors: Isora Ranson, Carmen M. Rivas
  • Biodesulfurization of hydrocarbons
    Patent number: 6808919
    Abstract: A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid hydrocarbon to the bioactive material under effective conditions such that the bioactive material interacts with the complex sulfur compounds and transforms the organic sulfur-containing compounds into inorganic sulfur compounds.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: October 26, 2004
    Assignee: Intevep, S.A.
    Inventors: Isora Ranson, Carmen M. Rivas
  • Biodesulfurization of hydrocarbons
    Publication number: 20030170873
    Abstract: A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid hydrocarbon to the bioactive material under effective conditions such that the bioactive material interacts with the complex sulfur compounds and transforms the organic sulfur-containing compounds into inorganic sulfur compounds.
    Type: Application
    Filed: March 11, 2002
    Publication date: September 11, 2003
    Inventors: Isora Ranson, Carmen M. Rivas
  • Biodesulfurization of hydrocarbons
    Publication number: 20030170874
    Abstract: A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid hydrocarbon to the bioactive material under effective conditions such that the bioactive material interacts with the complex sulfur compounds and transforms the organic sulfur-containing compounds into inorganic sulfur compounds.
    Type: Application
    Filed: February 24, 2003
    Publication date: September 11, 2003
    Inventors: Isora Ranson, Carmen M. Rivas