Granted Patent
Utility
US 4,798,810 · App. 06/838,217
Method for manufacturing a power MOS transistor
Inventors:
Richard A. Blanchard, Adrian I. Cogan
Patented Case
View Patent ↗
Granted: Jan 17, 1989
Filed: Mar 10, 1986
Inventors
Richard A. Blanchard
Adrian I. Cogan
Assignee (at issue)
SILICONIX INCORPORATED
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.