Patents by Inventor John C. Fried

John C. Fried 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).

  • Selectivation of molecular sieve catalysts and use therof in hydrocarbon conversion
    Patent number: 7326818
    Abstract: In a process for preparing a selectivated catalyst composition useful in the disproportionation of toluene, a catalyst comprising an acidic molecular sieve is contacted with a boron compound at a temperature in excess of 500° C.; and the resultant catalyst is then contacted with a medium containing hydrogen ions to at least partially restore the acid activity of the molecular sieve.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: February 5, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jean W. Beeckman, William G. Borghard, Arthur W. Chester, Robert A. Crane, Owen C. Feeley, John C. Fried, Dominick N. Mazzone, Glenn R. Sweeten