Granted Patent
Utility
US 5,640,128 · App. 08/599,387
Transimpedance amplifier circuit
Inventor:
Wilhelm Wilhelm
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Feb 9, 1996
Inventor
Wilhelm Wilhelm
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.