Granted Patent
Utility
US 5,581,346 · App. 08/314,201
System for characterizing semiconductor materials and photovoltaic device
Inventor:
Bhushan L. Sopori
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Sep 28, 1994
Inventor
Bhushan L. Sopori
Assignee (at issue)
Midwest Research Institute, Inc.
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.