Granted Patent
Utility
US 6,154,285 · App. 09/217,558
Surface treatment for optical image capturing system
Inventors:
Harry H. Teng, Sung Chan JO
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Dec 21, 1998
Inventors
Harry H. Teng
Sung Chan JO
Assignee (at issue)
SecuGen Corporation
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.