Granted Patent
Utility
US 6,805,791 · App. 10/133,237
Ozonated water flow and concentration control apparatus
Inventors:
Jens Fittkau, Johannes Seiwert, Christiane Gottschalk
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Apr 26, 2002
Inventors
Jens Fittkau
Johannes Seiwert
Christiane Gottschalk
Assignee (at issue)
Applied Science & Technology, 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.