Granted Patent
Utility
US 6,232,649 · App. 08/354,574
Bipolar silicon-on-insulator structure and process
Inventor:
Steven S. Lee
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Dec 12, 1994
Inventor
Steven S. Lee
Assignee (at issue)
Hyundai Electronics America
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.