Patents by Inventor Martin J. Armstrong

Martin J. Armstrong 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).

  • Residuum hydrotreating/hydrocracking with common hydrogen supply
    Patent number: 6179995
    Abstract: An integrated residuum hydroconversion process which includes a residuum hydrotreater and a desulfurized oil hydrocracker produces high quantities of high quality middle distillate fuels. Distillate range products from the residuum hydrotreater are hydrocracked, while catalyst fouling from heavy aromatics present in the hydrotreated products is minimized. The process includes a single hydrogen supply and recovery loop for increased cost and energy savings.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: January 30, 2001
    Assignee: Chevron U.S.A. Inc.
    Inventors: Dennis R. Cash, Martin J. Armstrong