Patents by Inventor Ralph Antoni Krul

Ralph Antoni Krul 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 to prepare a gasoline
    Patent number: 7678952
    Abstract: A process to prepare a gasoline fuel by contacting a Fischer-Tropsch product with a catalyst system of an acidic matrix and a large pore molecular sieve wherein the Fischer-Tropsch product has a weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product of at least 0.2 and wherein at least 30 wt % of compounds in the Fischer-Tropsch product have at least 30 carbon atoms.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: March 16, 2010
    Assignee: Shell Oil Company
    Inventors: Xander Dupain, Ralph Antoni Krul, Michiel Makkee, Jacob Adriaan Moulijn