Granted Patent
Utility
US 6,405,582 · App. 09/657,341
Biosensor and deposit sensor for monitoring biofilm and other deposits
Inventor:
Helmut Boettcher
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Sep 7, 2000
Inventor
Helmut Boettcher
Assignee (at issue)
HERCULES 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.