IP Library › Assignment 011636/0365
Patent Assignment
Reel/Frame 011636/0365

Assignment of Assignor's Interest

Recorded: 2001-03-16 Pages: 2
Assignor
PIERRAT, CHRISTOPHE
Executed: 2001-03-15
Assignee
NUMERICAL TECHNOLOGIES, INC.
70 WEST PLUMERIA DRIVE, SAN JOSE, CALIFORNIA, 95134
Covered Property (1)
Self-Aligned Fabrication Technique for Tri-Tone Attenuated Phase-Shifting Masks
Patent: 6,551,750 →
Application: 09/810,823 →
Publication: US 2002/0132174
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 →