Patents by Inventor Guillermo R. Gurza

Guillermo R. Gurza 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 of purification of phosphoric acid
    Patent number: 4495165
    Abstract: Appreciable inorganic impurities and organic matter are removed from impure phosphoric acid, particularly wet-process phosphoric acid, by pyrolysis of a mixture containing the raw acid and porous carbonaceous matter, including carbohydrates and chars, then leaching the pyrolyzed residue therefrom with a suitable solvent such as water to extract the purified phosphoric acid.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: January 22, 1985
    Inventor: Guillermo R. Gurza