Patent Assignment
Reel/Frame 019124/0417
Assignment of Assignor's Interest
Recorded: 2007-04-02
Pages: 3
Assignee
AT&T KNOWLEDGE VENTURES L.P. A NEVADA PARTNERSHIP
645 E. PLUMB LANE, RENO, NEVADA, 89502
Covered Property
(1)
Methods and Apparatus to Provide Presence Information
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.