Granted Patent
Utility
US 6,284,040 · App. 09/229,540
Process of stacking and melting polycrystalline silicon for high quality single crystal production
Inventors:
John D. Holder, Hariprasad Sreedharamurthy
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jan 13, 1999
Inventors
John D. Holder
Hariprasad Sreedharamurthy
Assignee (at issue)
MEMC Electronic Materials, 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.