Patent Assignment
Reel/Frame 016306/0684
Merger
Recorded: 2005-07-26
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)
System and method for correcting design rule violations in a mask layout file
Application:
10/159,566 →
Publication:
US 2002/0144230
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.