Granted Patent
Utility
US 4,947,104 · App. 07/300,151
Device and method for detection of fluid concentration utilizing charge storage in a MIS diode
Inventor:
Stephen C. Pyke
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Jan 19, 1989
Inventor
Stephen C. Pyke
Assignee (at issue)
Stephen C. Pyke
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.