Granted Patent
Utility
US 5,352,345 · App. 07/946,728
Ion exchange resin regenerant waste recovery and recycling via bipolar membranes
Inventors:
Carolyn Byszewski, John C. McArdle, Krishnamurthy N. Mani
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Sep 18, 1992
Inventors
Carolyn Byszewski
John C. McArdle
Krishnamurthy N. Mani
Assignee (at issue)
AlliedSignal, Inc.
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.