Granted Patent
Utility
US 6,416,645 · App. 09/498,021
Electrolytic process and apparatus for the controlled regeneration of modified ion exchangers to purify aqueous solutions
Inventors:
Richard L. Sampson, Allison H. Sampson
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Feb 4, 2000
Inventors
Richard L. Sampson
Allison H. Sampson
Assignees (at issue)
The State of Connecticut, as represented by the Department of Economic and Community Development
SILICON VALLEY BANK
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.