Granted Patent
Utility
US 5,863,554 · App. 08/899,976
Enhanced uptake drug delivery system
Inventor:
Lisbeth Illum
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Jul 24, 1997
Inventor
Lisbeth Illum
Assignee (at issue)
Danbiosyst UK 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.