Granted Patent
Utility
US 6,712,809 · App. 10/097,639
Eye positioning system and method
Inventors:
Haizhang Li, Phuoc Khanh Nguyen
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Mar 14, 2002
Inventors
Haizhang Li
Phuoc Khanh Nguyen
Assignee (at issue)
ALCON REFRACTIVESHORIZONS, 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.