Patents by Inventor Tracy L. Marshbanks

Tracy L. Marshbanks 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).

  • Resid hydroprocessing method utilizing a metal-impregnated, carbonaceous particle catalyst
    Patent number: 5951849
    Abstract: A method for converting a hydrocarbonaceous feedstock to a lower boiling product is described which comprises suspending metal-impregnated carbonaceous particles in a reaction zone including hydrogen and the hydrocarbonaceous feedstock at hydrocracking conditions. The metal impregnated on the particles may be sulfided in the reaction zone. The impregnated particles are shown to be surprisingly selective catalysts, and anomalous ranges of particle size and concentration are identified. Methods for preparing the particles are additionally presented.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: September 14, 1999
    Assignee: BP Amoco Corporation
    Inventors: Jeffrey T. Miller, Ronald B. Fisher, Tracy L. Marshbanks