IP Library › Assignment 011447/0426
Patent Assignment
Reel/Frame 011447/0426

Assignment of Assignor's Interest

Recorded: 2001-01-10 Pages: 4
Assignors
GUPTA, NARENDRA K.
Executed: 2001-01-03
STERN, BENJAMIN J.
Executed: 2001-01-03
Assignee
AT & T CORP.
32 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK, 10013
Covered Property (1)
Voice-Operated Interface for Dtmf-Controlled Systems
Patent: 6,868,142 →
Application: 09/757,454 →
Publication: US 2002/0090066
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 28, 2015
From: AT&T CORP.
To: AT&T PROPERTIES, LLC
Reel/Frame 035509/0210 →
Assignment of Assignor's Interest Apr 28, 2015
From: AT&T PROPERTIES, LLC
To: AT&T INTELLECTUAL PROPERTY II, L.P.
Reel/Frame 035509/0319 →
Assignment of Assignor's Interest Jan 26, 2017
From: AT&T INTELLECTUAL PROPERTY II, L.P.
To: NUANCE COMMUNICATIONS, INC.
Reel/Frame 041512/0608 →