Patents by Inventor Ronald W. Plesko

Ronald W. Plesko 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).

  • Catalyst composition and hydroprocessing of oils using same
    Patent number: 4758544
    Abstract: A catalyst composition comprising an alumina-aluminum phosphate-silica support bearing a halogen, a Group VI metal and a Group VIII metal in which the support has an average pore radius of from about 10 .ANG. to about 300 .ANG., a surface area ranging from about 50 m.sup.2 /g to about 400 m.sup.2 /g and a pore volume of about 0.1 to about 1.5 cc/g. The catalyst composition is used for hydroprocessing oils and possesses significant hydrodenitrification activity.
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: July 19, 1988
    Assignee: Chevron Research Company
    Inventors: Ronald W. Plesko, Allen E. Somers, John J. Stanulonis, Harold E. Swift, Roger F. Vogel