Patents by Inventor Ann D. Patterson

Ann D. Patterson 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).

  • Fluid coking with quench elutriation using industrial sludge
    Patent number: 4552649
    Abstract: An improved fluid coking process is provided in which an aqueous sludge comprising an organic waste is used as quench in a quench elutriator to cool the coke product and convert at least a portion of the organic waste to a vaporous compound (e.g., hydrocarbon) which is recycled to the heating zone to increase the fuel value of the heating zone gaseous effluent.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: November 12, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ann D. Patterson, Wayne M. Kachel