Granted Patent
Utility
US 6,522,919 · App. 09/718,135
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: Feb 18, 2003
Filed: Nov 21, 2000
Inventors
Ronald J. Flower
James Michael Devine
Assignee (at issue)
Vyteris, 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.