Granted Patent
Utility
US 6,652,645 · App. 09/943,600
Process for preparing a silicon melt
Inventor:
John D. Holder
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Aug 30, 2001
Inventor
John D. Holder
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.