IP Library › Assignment 012392/0874
Patent Assignment
Reel/Frame 012392/0874

Assignment of Assignor's Interest

Recorded: 2001-12-12 Pages: 3
Assignor
ZHANG, YOUPING
Executed: 2001-12-11
Assignee
NUMERICAL TECHNOLOGIES, INC.
70 W. PLUMERIA DRIVE, SAN JOSE, CALIFORNIA, 95134
Covered Property (1)
Method and Apparatus for Controlling Rippling During Optical Proximity Correction
Patent: 6,763,514 →
Application: 10/016,837 →
Publication: US 2003/0110465
Related Assignments (3)
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 →
Assignment of Assignor's Interest Jan 5, 2010
From: NUMERICAL TECHNOLOGIES, INC.
To: SYNOPSYS MERGER HOLDINGS, LLC.
Reel/Frame 023736/0273 →
Corrective Assignment to Correct the Assignor Document Date Should Be 12/20/2004 Previously Recorded on Reel 023736 Frame 0275. Assignor(S) Hereby Confirms the Assignment of Assignors Interest. Mar 10, 2016
From: NUMERICAL TECHNOLOGIES, INC.
To: SYNOPSYS MERGER HOLDINGS, LLC.
Reel/Frame 038060/0911 →