Granted Patent
Utility
US 5,693,837 · App. 08/684,099
Ferric alkyl amine citrates and methods of making them
Inventors:
Kevin W. Smith, Leonard J. Persinski
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jul 22, 1996
Inventors
Kevin W. Smith
Leonard J. Persinski
Assignee (at issue)
ClearWater Holdings, Ltd.
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.