Granted Patent
Utility
US 6,719,891 · App. 09/990,134
Point-of-use generation of chlorinated alkaline cleaning solutions by electrolysis
Inventors:
Richard Ruhr, Nathan D. Peitersen, Joel Schilling, Harold Matson, Sara Peters, Bryan Anderson, Mike Shulman, Paul Pankratz
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Nov 21, 2001
Inventors
Richard Ruhr
Nathan D. Peitersen
Joel Schilling
Harold Matson
Sara Peters
Bryan Anderson
Mike Shulman
Paul Pankratz
Assignee (at issue)
ECOLAB 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.