IP Library Assignment 028400/0584
Patent Assignment
Reel/Frame 028400/0584

Assignment of Assignor's Interest

Recorded: 2012-06-19 Pages: 4
Assignors
KU, BERNARD
Executed: 2009-05-05
SOO, ARMSTRONG
Executed: 2009-05-05
Assignee
AT&T INTELLECTUAL PROPERTY I, L.P.
645 E. PLUMB LANE, RENO, NEVADA, 89502
Covered Property (1)
Methods and Apparatus for Enhancing the Scalability of IMS in VoIP Service Deployment
Patent: 8,625,581 →
Application: 13/526,757 →
Publication: US 2012/0314700
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 25, 2019
From: AT&T INTELLECTUAL PROPERTY I, L.P.
To: RINGCENTRAL, INC.
Reel/Frame 050824/0312 →
Security Interest Feb 14, 2023
From: RINGCENTRAL, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 062973/0194 →