Granted Patent
Utility
US 6,167,301 · App. 08/520,521
Iontophoretic drug delivery device having high-efficiency DC-to-DC energy conversion circuit
Inventors:
Ronald J. Flower, James Michael Devine
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Aug 29, 1995
Inventors
Ronald J. Flower
James Michael Devine
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.