Patents by Inventor Rodrigo Ulep Ventura

Rodrigo Ulep Ventura 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 for treating precious metal bearing minerals
    Patent number: 6833021
    Abstract: A method of processing a mineral composition comprising a refractory material the method comprising milling the composition to a particle size of P80 of less than 25 microns and leaching said composition with a solution comprising lime and/or limestone in the presence of an oxygen containing gas.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: December 21, 2004
    Inventors: Michael Matthew Hourn, Rodrigo Ulep Ventura, John Anthony Willis, David Winborne