Granted Patent
Utility
US 6,576,831 · App. 09/990,505
Multicrystalline silicon having a low proportion of active grain borders
Inventors:
Peter Woditsch, Gunther Stollwerck, Christian Hassler, Wolfgang Koch
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Nov 14, 2001
Inventors
Peter Woditsch
Gunther Stollwerck
Christian Hassler
Wolfgang Koch
Assignee (at issue)
DEUTSCHE SOLAR 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.