Patent Assignment
Reel/Frame 051484/0166
Assignment of Assignor's Interest
Recorded: 2020-01-03
Pages: 8
Assignors
DONNENWIRTH, DAWN
Executed: 2017-08-10
MUNAR, LE ROY
Executed: 2017-08-22
ZHANG, TING
Executed: 2017-09-15
SAVAR, BAQUER ALI CHABUK
Executed: 2017-08-30
RAHMAN, MUHAMMAD TAWHIDUR
Executed: 2017-08-29
Assignee
T-MOBILE USA, INC.
12920 SE 38TH STREET, BELLEVUE, WASHINGTON, 98006
Covered Property
(1)
Determining Dropped Call Rates in Ip Multimedia Networks
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Agreement
Apr 2, 2020
From: T-MOBILE USA, INC.; ISBV LLC; T-MOBILE CENTRAL LLC; LAYER3 TV, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 053182/0001 →
Release of Security Interest
Aug 23, 2022
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: IBSV LLC; LAYER3 TV, LLC; PUSHSPRING, LLC; T-MOBILE CENTRAL LLC
Reel/Frame 062595/0001 →