Granted Patent
Utility
US 4,742,377 · App. 06/922,532
Schottky barrier device with doped composite guard ring
Inventor:
Willem G. Einthoven
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Oct 23, 1986
Inventor
Willem G. Einthoven
Assignee (at issue)
General Instrument 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.