IP Library › Assignment 051797/0270
Patent Assignment
Reel/Frame 051797/0270

Corrective Assignment to Correct the Execution Date for 2ND Inventor Previously Recorded at Reel: 21886 Frame: 461. Assignor(S) Hereby Confirms the Assignment.

Recorded: 2019-10-08 Pages: 6
Assignors
KUNG, YU-LEIN
Executed: 2008-11-21
STEIN, JEFFREY
Executed: 2008-11-24
Assignee
AT&T INTELLECTUAL PROPERTY I, L.P.
645 E. PLUMB LANE, RENO, NEVADA, 89502
Covered Property (1)
Methods, Computer Program Products, and Systems for Managing Voice Over Internet Protocol (Voip) Network Elements
Patent: 8,270,579 →
Application: 12/277,449 →
Publication: US US20100128860A1
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 25, 2008
From: KUNG, YU-LEIN; STEIN, JEFFREY
To: AT&T INTELLECTUAL PROPERTY I, LP
Reel/Frame 021886/0461 →
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 →