Patents by Inventor Dennis Joseph Rao

Dennis Joseph Rao 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).

  • Carbon-supported hydrodearomatization catalyst
    Patent number: 5837640
    Abstract: A naphtha or a middle distillate hydrocarbon is dehydroaromatized by hydrotreating in the presence of a catalyst containing non-noble Group VIII metal and Group VI-B metal on carbon.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: November 17, 1998
    Assignee: Texaco Inc.
    Inventors: Chakka Sudhakar, Frank Dolfinger, Jr., Dennis Joseph Rao, John Hazen