Patents by Inventor Jean B. Sigaud

Jean B. Sigaud 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).

  • Process for the separation of fine catalyst particles for a hydrocarbon feedstock by filtration through mineral barries and a filtration loop
    Patent number: 5074989
    Abstract: This invention relates to a process for the separation of fine catalyst particles from a hydrocarbon feedstock coming from a catalytic cracking unit by filtration through mineral barriers and a filtration loop.The process consists of filtering the feedstock through mineral barriers that are resistant to heat and have a porosity adapted to the minimum diameter of the particles to be retained. The porosity is generally between 0.1 and 100 microns.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: December 24, 1991
    Assignee: Compagnie de Raffinage et de Distribution Total France
    Inventors: Jean B. Sigaud, Jean Rossarie