Granted Patent
Utility
US 6,623,442 · App. 09/878,404
Dialysis apparatus for independently controlling the concentration of at least two ionic substances inside a patient's body
Inventors:
Bernard Bene, Jacques Burtin
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Jun 12, 2001
Inventors
Bernard Bene
Jacques Burtin
Assignee (at issue)
Hospal Industrie
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.