Granted Patent
Utility
US 5,156,989 · App. 07/268,839
Complementary, isolated DMOS IC technology
Inventors:
Richard K. Williams, Richard A. Blanchard
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Nov 8, 1988
Inventors
Richard K. Williams
Richard A. Blanchard
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.