Granted Patent
Utility
US 6,245,280 · App. 09/337,289
Method and apparatus for forming polycrystalline particles
Inventors:
Zhaosheng Tan, Krishna Sapru
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Jun 21, 1999
Inventors
Zhaosheng Tan
Krishna Sapru
Assignee (at issue)
Energy Conversion Devices, 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.