Granted Patent
Utility
US 5,190,108 · App. 07/746,695
Method and apparatus for inhibiting biological fouling of water wells
Inventor:
Neil Mansuy
Patented Case
View Patent ↗
Granted: Mar 2, 1993
Filed: Aug 19, 1991
Inventor
Neil Mansuy
Assignee (at issue)
Layne-Western Company, 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.