IP Library › Assignment 020428/0526
Patent Assignment
Reel/Frame 020428/0526

Assignment of Assignor's Interest

Recorded: 2008-01-29 Pages: 4
Assignors
CHRISTO, MICHAEL A.
Executed: 2008-01-25
MALDONADO, JULIO A.
Executed: 2008-01-25
WEEKLY, ROGER D.
Executed: 2008-01-25
ZHOU, TINGDONG
Executed: 2008-01-28
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property (1)
Auto-Router Performing Simultaneous Placement of Signal and Return Paths
Patent: 7,849,427 →
Application: 12/021,363 →
Publication: US 2009/0193383
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 1, 2013
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: MENTOR GRAPHICS CORPORATION
Reel/Frame 029733/0156 →
Merger and Change of Name Jun 18, 2021
From: MENTOR GRAPHICS CORPORATION; SIEMENS INDUSTRY SOFTWARE INC.
To: SIEMENS INDUSTRY SOFTWARE INC.
Reel/Frame 057261/0545 →