Patents by Inventor David Marseault

David Marseault 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).

  • Microporous and mesoporous silicoaluminate solid, process for preparation, use as a catalyst and for hydrocarbon conversion
    Patent number: 6558647
    Abstract: The invention relates to an acidic silicoaluminate solid that has a microporous zeolitic phase that is characterized by at least one infrared band between 400-1600 cm−1, an organized mesoporosity that is characterized by the presence of at least one X-diffraction line between 20-100 Å, a silica/alumina molar ratio of between 5-250 and an acidity that is measured by infrared analysis via an area of the band at about 1545 cm−1 at least equal to 50 g of dry solid. The invention also relates to a process for the preparation of the solid, a substrate that consists of solid and at least one matrix, and a catalyst that comprises said solid. The catalyst can be used for the conversion of hydrocarbons and in particular hydrocracking.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: May 6, 2003
    Assignee: Institut Francais du Petrole
    Inventors: Sylvie Lacombe, David Marseault, Philippe Caullet, Henri Kessler, Eric Benazzi, Alexandre Jouve
  • Microporous and mesoporous silicoaluminate solid, process for preparation, use as a catalyst and for hydrocarbon conversion
    Publication number: 20010031241
    Abstract: The invention relates to an acidic silicoaluminate solid that has a microporous zeolitic phase that is characterized by at least one infrared band between 400-1600 cm-1, an organized mesoporosity that is characterized by the presence of at least one X-diffraction line between 20-100 Å, a silica/alumina molar ratio of between 5-250 and an acidity that is measured by infrared analysis via an area of the band at about 1545 cm-1 at least equal to 50 g of dry solid.
    Type: Application
    Filed: December 14, 2000
    Publication date: October 18, 2001
    Inventors: Sylvie Lacombe, David Marseault, Philippe Caullet, Henri Kessler, Eric Benazzi, Alexandre Jouve