Granted Patent
Utility
US 6,676,916 · App. 10/290,885
Method for inducing controlled cleavage of polycrystalline silicon rod
Inventors:
David W. Keck, Edward W. Osborne, Halvor Kamrud
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Nov 8, 2002
Inventors
David W. Keck
Edward W. Osborne
Halvor Kamrud
Assignee (at issue)
Advanced Silicon Materials LLC
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.