Granted Patent
Utility
US 6,607,647 · App. 09/842,414
Electrodeionization apparatus with expanded conductive mesh electrode and method
Inventors:
Frederick C. Wilkins, Li-Shiang Liang, Anthony J. Giuffrida
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Apr 25, 2001
Inventors
Frederick C. Wilkins
Li-Shiang Liang
Anthony J. Giuffrida
Assignee (at issue)
United States Filter 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.