Patent Assignment
Reel/Frame 015500/0464
Assignment of Assignor's Interest
Recorded: 2004-12-27
Pages: 3
Assignors
CHENG, LI-TE
Executed: 2004-10-22
CLARK, BRYAN W.
Executed: 2004-10-21
HUPFER, SUSANNE C.
Executed: 2004-10-21
PATTERSON, JOHN
Executed: 2004-10-22
ROSS, STEVEN I.
Executed: 2004-10-23
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property
(1)
Chat User Interface for Threaded Text Chat Systems
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct the Execution Date for Assignor Steven I. Ross to 10/21/2004 Previously Recorded on Reel 15500 Frame 464. Assignor(S) Hereby Confirms the Assignment.
Oct 9, 2025
From: CHENG, LI-TE; CLARK, BRYAN W.; HUPFER, SUSANNE C.; PATTERSON, JOHN
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 073557/0992 →
Assignment of Assignor's Interest
Feb 19, 2026
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: MAPLEBEAR INC.
Reel/Frame 074940/0155 →