Patents by Inventor Alfonso F. Otero

Alfonso F. Otero 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).

  • Procedure to inhibit or eliminate acid gas generated in process of electrowinning of copper
    Publication number: 20040149589
    Abstract: A method for inhibiting or suppressing acid mist generated in a copper electrowinning method comprising adding to electrolyte from which copper is electrowon, a soluble surfactant comprising an extract from the Quillaja saponaria Molina tree.
    Type: Application
    Filed: August 19, 2003
    Publication date: August 5, 2004
    Inventors: Ricardo San Martin, Veronica L. Escobar, Alfonso F. Otero, Carlos R. Espinoza, Patricia C. Munoz, Manfredo Figueroa