Below is the newest reexamination request filed with the United States Patent and Trademark Office as of June 28, 2012:  one inter partes reexamination request.

Control # – 90/012,376

Date – 06-27-2012 – Receipt of Orig or Corrected Ex Parte Reexam Request
Patent # – 5,898,762
Inventor(s) – Katz; Ronald A. (Los Angeles, CA)
Assignee – Delta Air Lines, Inc.
Title – Telephonic-Interface Statistical Analysis System
No documents posted yet on USPTO website.