Granted Patent
Utility
US 6,706,195 · App. 09/999,606
High efficiency ion exchange system for removing arsenic from water
Inventors:
Peter L. Jensen, Gerald A. Guter, Dan Ziol
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Oct 25, 2001
Inventors
Peter L. Jensen
Gerald A. Guter
Dan Ziol
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.