Patents by Inventor Charles Theodore Kresge

Charles Theodore Kresge 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).

  • Catalytic cracking process using a modified mesoporous aluminophosphate material
    Patent number: 6797155
    Abstract: A process for catalytic cracking of a hydrocarbon feedstock comprises contacting the feedstock with a catalyst composition comprising a primary cracking component, such as zeolite Y, and a mesoporous aluminophosphate material which includes a solid aluminophosphate composition modified with at least one element selected from zirconium, cerium, lanthanum, manganese, cobalt, zinc, and vanadium. The mesoporous aluminophosphate material has a specific surface area of at least 100 m2/g, an average pore size less than or equal to 100 Å, and a pore size distribution such that at least 50% of the pores have a pore diameter less than 100 Å.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: September 28, 2004
    Assignee: ExxonMobil Research & Engineering Co.
    Inventors: Arthur Warren Chester, Frederick Earl Daugherty, Anthony Shiu lun Fung, Charles Theodore Kresge, Hye Kyung Cho Timken, James Clarke Vartuli, Ranjit Kumar, Terry G. Roberie, Michael S. Ziebarth
  • Catalyst having an acidic solid oxide component and a group IB metal or metal oxide component
    Patent number: 5902767
    Abstract: This invention is directed to a catalyst that comprises (i) an acidic solid oxide component comprising an oxide of a Group IVB metal modified with an anion or oxyanion of a Group VIB metal, and (ii) a Group IB metal or metal oxide component. This catalyst may be used, for example, to isomerize paraffins.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: May 11, 1999
    Assignee: Mobil Oil Corporation
    Inventors: Charles Theodore Kresge, Clarence D. Chang, Jose Guadalupe Santiesteban, David S. Shihabi, Scott Andrew Stevenson, James C. Vartuli