Patent Assignment
Reel/Frame 021208/0454
Assignment of Assignor's Interest
Recorded: 2008-07-08
Pages: 4
Assignors
BRINK, RICHARD S.
Executed: 2008-06-27
CURRY, MICHAEL R.
Executed: 2008-06-27
RICHETTA, RAYMOND A.
Executed: 2008-07-08
SCHMERBECK, TIMOTHY J.
Executed: 2008-06-27
Assignee
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD, ARMONK, NEW YORK, 10504
Covered Property
(1)
Method for Hierarchical Vlsi Mask Layout Data Interrogation
Patent:
7,503,024 →
Application:
12/169,447 →
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 →