Patents by Inventor Selma SheungNam Lawrence

Selma SheungNam Lawrence 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 regeneration process
    Patent number: 8822363
    Abstract: This disclosure relates to a process for regenerating a catalyst composition, wherein the catalyst composition comprising a molecular sieve and at least 10 wt. % coke having a C/H molar ratio in the range of 0.26 to 5, the process comprising (a) contacting the catalyst composition with a first oxidative medium having oxygen and water at first conditions sufficient to form a first regenerated catalyst composition having at least 50 wt.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: September 2, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Doron Levin, James Harding Beech, Jr., Selma SheungNam Lawrence, Julia Elizabeth Steinheider