Granted Patent
Utility
US 6,364,856 · App. 09/060,071
Medical device with sponge coating for controlled drug release
Inventors:
Ni Ding, W. Scott Andrus
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Apr 14, 1998
Inventors
Ni Ding
W. Scott Andrus
Assignee (at issue)
Boston Scientific Limited
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.