Patents by Inventor Ellen L. Wu

Ellen L. Wu 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).

  • Processing of coal liquefaction products
    Patent number: 4313821
    Abstract: A process for removing undesirable elements, e.g. nitrogen, sulfur, oxygen, from the light organic liquid product derived from a solvent refined coal liquefaction process, while preserving octane number, which comprises the steps of (1) subjecting the light liquids to an ion-exchange resin treatment and (2) contacting the resulting ion-exchanged liquids with a zeolite acting as an adsorbent under specified conditions of space velocity, temperature and pressure.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: February 2, 1982
    Assignee: Mobil Oil Corporation
    Inventors: William E. Garwood, Sterling E. Voltz, Ellen L. Wu