Granted Patent
Utility
US 4,297,149 · App. 06/146,380
Method of treating SiPOS passivated high voltage semiconductor device
Inventors:
Patrick Koons, John Manning Savidge Neilson
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: May 5, 1980
Inventors
Patrick Koons
John Manning Savidge Neilson
Assignee (at issue)
RCA 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.