Granted Patent
Utility
US 5,311,145 · App. 08/036,774
Combination driver-summing circuit for rail-to-rail differential amplifier
Inventors:
Johan H. Huijsing, John Tero
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Mar 25, 1993
Inventors
Johan H. Huijsing
John Tero
Assignee (at issue)
North American Philips Corporation
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.