Patent Assignment
Reel/Frame 023728/0613
Merger
Recorded: 2010-01-04
Pages: 2
Assignor
DUPONT PHOTOMASKS, INC.
Executed: 2005-04-22
Assignee
TOPPAN PHOTOMASKS, INC.
131 OLD SETTLERS BOULEVARD, ROUND ROCK, TEXAS, 78664
Covered Property
(1)
Method for Calibrating a Metrology Tool
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.