Granted Patent
Utility
US 6,381,347 · App. 09/191,428
High contrast, low distortion optical acquistion system for image capturing
Inventors:
Harry H. Teng, Sung Chan JO
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Nov 12, 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.