Granted Patent
Utility
US 6,423,219 · App. 09/662,097
System and method for controlling microorganisms and biofilms
Inventor:
James W. Chandler
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Sep 14, 2000
Inventor
James W. Chandler
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.