Patents by Inventor Quang Ngoc Le

Quang Ngoc Le 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).

  • Procedure for regenerating platinum containing zeolite catalyst compositions
    Patent number: 4689312
    Abstract: An improved regeneration procedure is described for restoring the hydrogen chemisorption of aged platinum containing zeolite catalyst compositions. The process includes subjecting th catalyst to reactivation, followed by oxygen regeneration. After regeneration, in accordance with the invention, a platinum containing zeolite catalyst composition has a platinum dispersion, illustrated by H.sub.2 chemisorption, equivalent to fresh catalyst.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: August 25, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Quang Ngoc Le, Stephen J. McCarthy, Kenneth M. Mitchell