Patents by Inventor Joseph F. Marmo

Joseph F. Marmo 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).

  • Cycle oil conversion process
    Patent number: 4162961
    Abstract: A cycle oil is hydrogenated under conditions such that the product of the hydrogenation process can be fractionated to obtain a more valuable naphtha reforming charge stock and a furnace oil fraction.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: July 31, 1979
    Assignee: Gulf Research & Development Company
    Inventor: Joseph F. Marmo