Granted Patent
Utility
US 5,320,685 · App. 07/928,323
Thin solar cell
Inventors:
Just Hilgarth, Volker Frese, Matthias Braun
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Aug 12, 1992
Inventors
Just Hilgarth
Volker Frese
Matthias Braun
Assignee (at issue)
Telefunken Systemtechnik GmbH
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.