Patents by Inventor Jean-Fran.cedilla.ois Nicolas

Jean-Fran.cedilla.ois Nicolas 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 partial oxidation of a gas stream containing hydrogen sulphide
    Patent number: 6083466
    Abstract: Process for partial oxidation in a Claus furnace of at least one gas stream comprising hydrogen sulphide, comprising the steps of:(a) injecting at least one gas stream comprising hydrogen sulphide and at least one oxygen-enriched gas stream into the Claus furnace, wherein each of the streams is injected at a speed of injection which is substantially parallel,(b) controlling the speed of injection of the gas stream comprising hydrogen sulphide and the speed of injection of the oxygen-enriched gas stream such that the speeds have a ratio between 0.8 and 1.2.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: July 4, 2000
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Ebrahim Djavdan, Jacques Koening, Jean-Fran.cedilla.ois Nicolas, Vincent Queudot, Olivier Charon
  • Defective recombinant retrovirus
    Patent number: 5583022
    Abstract: The invention relates to a defective recombinant retrovirus containing a sequence coding for a specific protein in the genome of the cells. The DNA of the recombinant retrovirus contains the sequence coding for the protein intercalated between an acceptor splicing site and a donor splicing site, the whole assembly being placed under the control of a suitable promoter under conditions such that the infection of the said cells by this recombinant retrovirus is accompanied by the incorporation of the sequence coding for the protein into the genome of the infected cells.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: December 10, 1996
    Assignees: Institut Pasteur, Institut National de la Sante et de la Recherche Medicale
    Inventors: Thierry Heidmann, Jean-Fran.cedilla.ois Nicolas