Granted Patent
Utility
US 6,490,646 · App. 09/332,581
Integrated circuit device made secure by means of additional bus lines
Inventor:
Robert Leydier
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Jun 14, 1999
Inventor
Robert Leydier
Assignee (at issue)
Schlumberger Systemes
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.