AT&T Services Inc.

4 registered patent practitioners: 3 patent attorneys and 1 patent agents, Atlanta, GA.

• Umesh M. Desai — Patent attorney, Reg. No. 36380, AT&T Services Inc.
• Brian J. Gaffney — Patent attorney, Reg. No. 51712, AT&T Services Inc.
• Zhi Li — Patent agent, Reg. No. 66694, AT&T Services Inc.
• Geoff L. Sutcliffe — Patent attorney, Reg. No. 36348, AT&T Services Inc.