Granted Patent
Utility
US 6,482,304 · App. 09/720,350
Apparatus and method of recirculating electrodeionization
Inventors:
Nigel EMERY, Roger Woodward, Paul Whitehead
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Apr 5, 2001
Inventors
Nigel EMERY
Roger Woodward
Paul Whitehead
Assignee (at issue)
OTV Societe Anonyme
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.