Patents by Inventor Albert Sfeir

Albert Sfeir 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 extraction involving the use of solvents and new combination of reactors used
    Patent number: 4028462
    Abstract: In a process of extraction involving the use of solvents, considerable increase is obtained in the effective load of the extraction phase and in the recovery factor, through a new combination of the reactors employed in order that the loading and unloading stages of the organic phase may alternate.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: June 7, 1977
    Assignee: Corporacion de Fomento de la Produccion, represented by Comite de Investigaciones Technologicas
    Inventors: Esteban Domic, Albert Sfeir, Jorge Sandoval