Patents by Inventor Johannes Leendert William Cornelis Den Boestert

Johannes Leendert William Cornelis Den Boestert 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 removing asphaltenic particles
    Patent number: 8608939
    Abstract: Process for removing asphaltenic particles from a hydrocarbon feed containing asphaltenic particles by treating the feed in a filter unit comprising a perforated tube surrounded by hollow longitudinal projections comprising a filter having openings of at most 50 micrometer diameter in which the internal space of each of the hollow projections is in fluid communication with the inside of the perforated tube and which filter is regularly subjected to cleaning by treating each of the projections with cleaning fluid wherein the flow of cleaning fluid is opposite to the direction of normal flow.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: December 17, 2013
    Assignee: Shell Oil Company
    Inventors: Johannes Leendert William Cornelis Den Boestert, Duurt Renkema, Marco Jordi In Het Veld