Granted Patent
Utility
US 5,505,713 · App. 08/221,934
Indwelling catheter with stable enzyme coating
Inventor:
William P. Van Antwerp
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Apr 1, 1994
Inventor
William P. Van Antwerp
Assignee (at issue)
MiniMed, 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.