Patent Assignment
Reel/Frame 020347/0159
Change of Name
Recorded: 2008-01-10
Pages: 2
Assignor
SBC KNOWLEDGE VENTURES, L.P.
Executed: 2006-03-17
Assignee
AT&T KNOWLEDGE VENTURES, L.P.
645 E. PLUMB LANE, RENO, NEVADA, 89502
Covered Property
(1)
System and Method for Restricting and Monitoring Telephone Calls
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 18, 2002
From: TILIKS, DIANNA INARA; CROCKETT, SUSANNE MARIE; BOOK, NANCY ANN; GRUCHALA, CAROL SHIFRIN
To: AMERITECH CORPORATION
Reel/Frame 012486/0541 →
Assignment of Assignor's Interest
Apr 25, 2003
From: AMERITECH PROPERTIES, INC.
To: SBC HOLDINGS PROPERTIES, L.P.
Reel/Frame 013974/0542 →
Assignment of Assignor's Interest
Apr 25, 2003
From: AMERITECH CORPORATION
To: AMERITECH PROPERTIES, INC.
Reel/Frame 013986/0525 →
Assignment of Assignor's Interest
Apr 25, 2003
From: SBC HOLDINGS PROPERTIES, L.P.
To: SBC PROPERTIES, L.P.
Reel/Frame 014015/0689 →
Change of Name
Jan 10, 2008
From: SBC PROPERTIES, L.P.
To: SBC KNOWLEDGE VENTURES, L.P.
Reel/Frame 020347/0161 →