Granted Patent
Utility
US 6,649,488 · App. 10/304,696
Method of shallow trench isolation
Inventors:
Jae-Suk Lee, Dae Heok Kwon
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Nov 27, 2002
Inventors
Jae-Suk Lee
Dae Heok Kwon
Assignee (at issue)
Dongbu Electronics, Co. Ltd.
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.