IP Library Assignment 018179/0688
Patent Assignment
Reel/Frame 018179/0688

Assignment of Assignor's Interest

Recorded: 2006-08-28 Pages: 3
Assignors
BOYER, JOHN M.
Executed: 2006-06-12
TRAKHTENBERG, VLADIMIR
Executed: 2006-06-12
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property (1)
Method, System, and Program Product for Preventing Unauthorized Changes to an Electronic Document
Patent: 8,572,751 →
Application: 11/423,527 →
Publication: US 2007/0288767
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 19, 2021
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: PROACTIVE PATENTS, LLC
Reel/Frame 056900/0799 →