Granted Patent
Utility
US 6,356,036 · App. 09/727,992
System and method for determining birefringence of anterior segment of a patient's eye
Inventor:
Qienyuan Zhou
Patented Case
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Granted: Mar 12, 2002
Filed: Dec 1, 2000
Inventor
Qienyuan Zhou
Assignee (at issue)
Laser Diagnostic Technologies, 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.