Granted Patent
Utility
US 6,818,417 · App. 10/213,682
Method for locating hidden microorganism contaminated surfaces in industrial water systems
Inventors:
Andrew J. Cooper, Michael V. Enzien, Steven R. Hatch, Bosco Ho, May M. Wu
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Aug 6, 2002
Inventors
Andrew J. Cooper
Michael V. Enzien
Steven R. Hatch
Bosco Ho
May M. Wu
Assignee (at issue)
Nalco Company LLC
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.