Granted Patent
Utility
US 6,554,898 · App. 10/254,945
Crystal puller for growing monocrystalline silicon ingots
Inventors:
Zheng Lu, Mohsen Banan, Ying Tao, Lee William Ferry, Carl F. Cherko
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Sep 25, 2002
Inventors
Zheng Lu
Mohsen Banan
Ying Tao
Lee William Ferry
Carl F. Cherko
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.