Patent Assignment
Reel/Frame 020657/0225
Assignment of Assignor's Interest
Recorded: 2008-03-16
Pages: 2
Assignors
CHI, CHAN YAN
Executed: 2008-03-12
WANG, TIAN SHU
Executed: 2008-03-12
XIAO, WEN PENG
Executed: 2008-03-12
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property
(1)
Method, Apparatus and Computer Program Product for Constructing Topic Structure in Instance Message Meeting
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 15, 2019
From: CHI, CHANG YAN; WANG, TIAN SHU; XIAO, WEN PENG
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 049749/0839 →
Assignment of Assignor's Interest
Jan 15, 2021
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: AIRBNB, INC.
Reel/Frame 056427/0193 →