Granted Patent
Utility
US 5,292,515 · App. 08/041,523
Manufacture of water-swellable hydrophilic articles and drug delivery devices
Inventors:
Daniel G. Moro, Petr Kuzma, Harry Quandt
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Mar 31, 1993
Inventors
Daniel G. Moro
Petr Kuzma
Harry Quandt
Assignee (at issue)
Hydro Med Sciences, a Division of National Patent Development Corporation
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.