Patents by Inventor Anthony Hagan

Anthony Hagan 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).

  • Upgrading of pre-processed used oils
    Publication number: 20050006282
    Abstract: A process to further upgrade a pre-processed used lubricating oil by: (a) contacting the partially upgraded used oil in the presence of hydrogen with a hydrodemetallization catalyst; (b) contacting the effluent of step (a) in the presence of hydrogen with a hydrotreating catalyst; (c) contacting the effluent of step (b) in the presence of hydrogen with a dewaxing catalyst; and (d) contacting the effluent of step (c) in the presence of hydrogen with a hydrotreating catalyst.
    Type: Application
    Filed: October 16, 2002
    Publication date: January 13, 2005
    Inventors: Pierre Grandvallet, Anthony Hagan, Laurent Huve