Granted Patent
Utility
US 5,589,171 · App. 08/294,097
Treatment of Dupuytren's disease with collagenase
Inventor:
Thomas L. Wegman
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Aug 22, 1994
Inventor
Thomas L. Wegman
Assignee (at issue)
Advance Biofactures of Curacao, N.V.
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.