Patents by Inventor James L. Kosco

James L. Kosco 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).

  • Alkyl aromatic isomerization
    Patent number: 4128591
    Abstract: Disclosure is made of an improved catalyst and process for producing a near equilibrium mixture of xylenes from a feedstream comprising ethylbenzene and mixed xylenes. The catalyst combines a platinum-containing hydrogenation-dehydrogenation component on an alumina support with a form of hydrogen mordenite having less than about 0.3 equivalents of alkali and alkaline earth metal cations per gram-atom of aluminum and a silica to alumina mol ratio greater than about 9-11 to 1 and less than about 17 to 1.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: December 5, 1978
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: William C. Carr, Leon M. Polinski, Saul G. Hindin, James L. Kosco