Granted Patent
Utility
US 6,767,464 · App. 10/317,966
Process and apparatus for waste water treatment
Inventors:
Steven H. Boyd, Abdul R. M. Azad
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Dec 12, 2002
Inventors
Steven H. Boyd
Abdul R. M. Azad
Assignee (at issue)
Environmental Operating Solutions, 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.