IP Library › Assignment 035388/0173
Patent Assignment
Reel/Frame 035388/0173

Assignment of Assignor's Interest

Recorded: 2015-04-12 Pages: 8
Assignors
BOYER, JOHN M.
Executed: 2014-10-02
PERRY, ETHAN L.
Executed: 2014-10-01
SUMMERVILLE, MARION R.
Executed: 2014-09-30
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property (1)
Generating Question and Answer Pairs to Assess Understanding of Key Concepts in Social Learning Playlist
Patent: 9,569,488 →
Application: 14/684,388 →
Publication: US 2016/0098937
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 15, 2021
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: AIRBNB, INC.
Reel/Frame 056427/0193 →