IP Library › Assignment 022309/0623
Patent Assignment
Reel/Frame 022309/0623

Assignment of Assignor's Interest

Recorded: 2009-02-26 Pages: 4
Assignors
LIU, HUA-YU
Executed: 2009-02-19
PIERRAT, CHRISTOPHE
Executed: 2009-02-20
RICHARDSON, KENT
Executed: 2009-02-24
Assignee
NUMERICAL TECHNOLOGIES, INC.
70 W. PLUMERIA DR., SAN JOSE, CALIFORNIA, 95134
Covered Property (1)
Alternating Phase Shift Mask Design Conflict Resolution
Patent: 7,178,128 →
Application: 10/272,104 →
Publication: US 2003/0056190
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 4, 2005
From: SYNOPSYS MERGER HOLDINGS LLC
To: SYNOPSYS, INC.
Reel/Frame 015653/0738 →
Confirmation of Assignment Jan 13, 2010
From: NUMERICAL TECHNOLOGIES, INC.
To: SYNOPSYS MERGER HOLDINGS LLC
Reel/Frame 023774/0882 →