Granted Patent
Utility
US 5,897,331 · App. 08/745,951
High efficiency low cost thin film silicon solar cell design and method for making
Inventor:
Bhushan L. Sopori
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Nov 8, 1996
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.