Granted Patent
Utility
US 6,776,840 · App. 09/502,340
Method and apparatus for controlling diameter of a silicon crystal in a locked seed lift growth process
Inventors:
Robert H. Fuerhoff, Steven L. Kimbel
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Feb 10, 2000
Inventors
Robert H. Fuerhoff
Steven L. Kimbel
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.