Granted Patent
Utility
US 5,914,041 · App. 08/925,055
Channel based reverse osmosis
Inventor:
Dennis Chancellor
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Sep 8, 1997
Inventor
Dennis Chancellor
Assignee (at issue)
NATE International
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.