Patent Assignment
Reel/Frame 017085/0751
Assignment of Assignor's Interest
Recorded: 2005-12-02
Pages: 3
Assignee
SBC KNOWLEDGE VENTURES, L.P.
645 E. PLUMB LANE, RENO, NEVADA, 89502
Covered Property
(1)
System and Method for Billing Telephone Calls
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.