Granted Patent
Utility
US 6,664,857 · App. 10/364,817
Two-stage operational amplifier
Inventor:
Udo Ausserlechner
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Feb 11, 2003
Inventor
Udo Ausserlechner
Assignee (at issue)
Infineon Technologies AG
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.