Granted Patent
Utility
US 5,337,009 · App. 08/046,124
Error amplifier
Inventors:
Rudolf Koch, Fritz Mistlberger
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Apr 12, 1993
Inventors
Rudolf Koch
Fritz Mistlberger
Assignee (at issue)
Siemens Aktiengesellschaft
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.