Granted Patent
Utility
US 5,351,012 · App. 08/041,936
Low input resistance current-mode feedback operational amplifier input stage
Inventor:
Christofer Toumazou
Patented Case
View Patent ↗
Granted: Sep 27, 1994
Filed: Apr 2, 1993
Inventor
Christofer Toumazou
Assignee (at issue)
Elantec, 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.