Granted Patent
Utility
US 6,830,586 · App. 10/086,100
Stentless atrioventricular heart valve fabricated from a singular flat membrane
Inventors:
Rodolfo C. Quijano, Than Nguyen, Hosheng Tu
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Feb 28, 2002
Inventors
Rodolfo C. Quijano
Than Nguyen
Hosheng Tu
Assignee (at issue)
3F Therapeutics, 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.