Granted Patent
Utility
US 6,020,207 · App. 09/098,859
Optical analysis technique and sensors for use therein
Inventor:
Su Yi Liu
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Jun 17, 1998
Inventor
Su Yi Liu
Assignee (at issue)
World Precision Instruments
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.