Patents by Inventor Daniel Vautier

Daniel Vautier 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 improving the stability of catalysts for the catalytic hydrotreatment of petroleum cuts
    Patent number: 4409130
    Abstract: The invention relates to a process to improve the stability of a catalyst to be used for lowering the cloud or turbidity point and the filterability limit temperature of gas-oils.The catalyst is formed of a composite system constituting 5 to 90% of a hydrodesulfuration type catalyst A and 95 to 10% of a hydroconversion type catalyst B, these two catalysts being either mixed or superposed, in which case catalyst A forms the top of the catalytic bed.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: October 11, 1983
    Inventors: Jacques Bousquet, Claude Gueguen, Daniel Vautier
  • Process for improving the stability of catalysts for the catalytic hydrotreatment of petroleum cuts
    Patent number: 4363719
    Abstract: The invention relates to a process to improve the stability of a catalyst to be used for lowering the cloud or turbidity point and the filterability limit temperature of gas-oils.The catalyst is formed of a composite system constituting 5 to 90% of a hydrodesulfuration type catalyst A and 95 to 10% of a hydroconversion type catalyst B, these two catalysts being either mixed or superposed, in which case catalyst A forms the top of the catalytic bed.
    Type: Grant
    Filed: April 28, 1981
    Date of Patent: December 14, 1982
    Assignee: Elf France
    Inventors: Jacques Bousquet, Claude Gueguen, Daniel Vautier