Granted Patent
Utility
US 6,750,139 · App. 10/017,458
Dummy metal pattern method and apparatus
Inventor:
Xiaojun Wang
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Dec 12, 2001
Inventor
Xiaojun Wang
Assignee (at issue)
Aurora Systems, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.