Patents by Inventor Jean-Louis Portefaix

Jean-Louis Portefaix 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).

  • Hydrorefining catalyst containing ruthenium sulphide, its synthesis and hydrorefining process using the said catalyst
    Patent number: 5356846
    Abstract: The present invention relates to a hydrorefining catalyst containing ruthenium sulphide including the synthesis thereof and also to a process for hydrorefining hydrocarbon feedstocks using the aforementioned catalyst.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: October 18, 1994
    Assignee: Elf Antar France
    Inventors: Michele Breysse, Martine Cattenot, Thierry Des Courieres, Christian Gachet, Jean-Louis Portefaix
  • Hydrorefining process employing a niobium trisulfide-containing catalyst
    Patent number: 5294333
    Abstract: Catalyst for hydrorefining hydrocarbon feedstocks including niobium trisulphide, said catalyst is particularly suited for the scission of carbon-nitrogen and carbon-sulphur bonds.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: March 15, 1994
    Assignee: Elf France
    Inventors: Michele Breysse, Thierry Des Courieres, Michel Danot, Christophe Geantet, Jean-Louis Portefaix
  • Catalyst for hydrorefining hydrocarbon feedstocks containing niobium trisulphide
    Patent number: 5157009
    Abstract: Catalyst for hydrorefining hydrocarbon feedstocks consisting of niobium trisulphide, bulk or deposited on an inert support.This catalyst is particularly efficient for the reactions of scission of carbon-nitrogen and carbon-sulphur bonds.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: October 20, 1992
    Assignee: Elf France
    Inventors: Michele Breysse, Thierry Des Courieres, Michel Danot, Christophe Geantet, Jean-Louis Portefaix