Patent Assignment
Reel/Frame 029880/0721
Assignment of Assignor's Interest
Recorded: 2013-02-26
Pages: 3
Assignor
COOK, ALAN
Executed: 2012-07-03
Assignee
METASWITCH NETWORKS LTD
100 CHURCH STREET, ENFIELD, EN2 6BQ, UNITED KINGDOM
Covered Properties
(2)
Methods and Systems for Controlling a Communication Session
Communication System
Application:
61/603,871 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Security Interest
May 6, 2025
From: ALIANZA, INC.; METASWITCH NETWORKS LTD
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 071191/0228 →
Assignment of Assignor's Interest
May 13, 2026
From: MICROSOFT TECHNOLOGY LICENSING, LLC
To: ALIANZA, INC.
Reel/Frame 075645/0892 →
Change of Name
May 13, 2026
From: ALIANZA, INC.
To: ALIANZA, LLC
Reel/Frame 075646/0037 →
Assignment of Assignor's Interest
May 13, 2026
From: METASWITCH NETWORKS LTD.
To: MICROSOFT TECHNOLOGY LICENSING, LLC
Reel/Frame 075578/0155 →
Assignment of Assignor's Interest
May 13, 2026
From: METASWITCH LIMITED
To: MICROSOFT TECHNOLOGY LICENSING, LLC
Reel/Frame 075835/0639 →