Patent Assignment
Reel/Frame 035592/0539
Assignment of Assignor's Interest
Recorded: 2015-05-08
Pages: 12
Assignors
CHAN, YUK L.
Executed: 2015-04-27
ESSENMACHER, MICHAEL D.
Executed: 2015-04-28
HERTZIG, JAMES M.
Executed: 2015-04-28
LECTION, DAVID B.
Executed: 2015-04-27
SCOTT, MARK A.
Executed: 1997-03-31
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property
(1)
Conducting a Sequence of Surveys Using a Challenge-Response Test
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.