Granted Patent
Utility
US 6,737,448 · App. 10/161,030
High refractive index, optically clear and soft hydrophobic acrylamide copolymers
Inventor:
Xiugao Liao
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Jun 3, 2002
Inventor
Xiugao Liao
Assignee (at issue)
STAAR Surgical Company
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.