Patents by Inventor Freddie Sandifer

Freddie Sandifer 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).

  • Xylene isomerization process and apparatus
    Patent number: 8134037
    Abstract: Xylene isomerization processes, especially those processes in which ethylbenzene is also converted, are beneficially affected by adding benzene to the feed.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: March 13, 2012
    Assignee: UOP LLC
    Inventors: Paula L. Bogdan, Robert B. Larson, James E. Rekoske, Patrick J. Silady, Patrick C. Whitchurch, Freddie Sandifer
  • Xylene Isomerization Process and Apparatus
    Publication number: 20100069694
    Abstract: Xylene isomerization processes, especially those processes in which ethylbenzene is also converted, are beneficially affected by adding benzene to the feed.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 18, 2010
    Applicant: UOP LLC
    Inventors: Paula L. Bogdan, Robert B. Larson, James E. Rekoske, Patrick J. Silady, Patrick C. Whitchurch, Freddie Sandifer
  • Xylene isomerization with an added benzene
    Patent number: 7371914
    Abstract: Xylene isomerization processes, especially those processes in which ethylbenzene is also converted, are beneficially affected by adding benzene to the feed.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: May 13, 2008
    Assignee: UOP LLC
    Inventors: Robert B. Larson, James E. Rekoske, Patrick J. Silady, Patrick C. Whitchurch, Freddie Sandifer
  • Xylene Isomerization Process and Apparatus
    Publication number: 20080041765
    Abstract: Xylene isomerization processes, especially those processes in which ethylbenzene is also converted, are beneficially affected by adding benzene to the feed.
    Type: Application
    Filed: July 27, 2007
    Publication date: February 21, 2008
    Inventors: Robert Larson, James Rekoske, Patrick Silady, Patrick Whitchurch, Freddie Sandifer