Granted Patent
Utility
US 5,822,052 · App. 08/772,323
Method and apparatus for compensating illuminance error of a light source
Inventor:
Jenn-Tsair Tsai
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Dec 23, 1996
Inventor
Jenn-Tsair Tsai
Assignee (at issue)
Nustek Systems, 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.