Granted Patent
Utility
US 5,202,591 · App. 07/742,799
Dynamic circuit disguise for microelectronic integrated digital logic circuits
Inventor:
Robert H. Walden
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Aug 9, 1991
Inventor
Robert H. Walden
Assignee (at issue)
Hughes Aircraft Company
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.