Granted Patent
Utility
US 5,499,971 · App. 08/166,737
Method for iontophoretically delivering drug adjacent to a heart
Inventors:
James Edward Shapland, Keith R. Hildebrandt, Mark B. Knudson
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Dec 14, 1993
Inventors
James Edward Shapland
Keith R. Hildebrandt
Mark B. Knudson
Assignee (at issue)
Cortrak Medical, 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.