Granted Patent
Utility
US 5,728,303 · App. 08/789,780
Electro-coalescence/magnetic separation (ECMS) system and components for removal of contaminants from water streams, including desalinization
Inventor:
Dennis E. J. Johnson
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Jan 28, 1997
Inventor
Dennis E. J. Johnson
Assignee (at issue)
Aqua-Ion Systems, 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.