Patents Represented by Attorney, Agent or Law Firm Charles W. Stewar
  • Method for zeolite platinization
    Patent number: 6406614
    Abstract: A catalyst composition containing a zeolite and platinum, and a method of preparing such catalyst composition, are disclosed. The thus-obtained catalyst composition is employed in the conversion of a hydrocarbon to aromatics.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: June 18, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Darin B. Tiedtke, Tin-Tack Peter Cheung, Daniel Resasco, Gary Jacobs