Granted Patent
Utility
US 6,746,885 · App. 09/938,875
Method for making a semiconductor light source
Inventor:
Densen Cao
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Aug 24, 2001
Inventor
Densen Cao
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.