Granted Patent
Utility
US 6,207,440 · App. 09/216,909
Bacterial nitrite oxidizer
Inventor:
Timothy A. Hovanec
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Dec 21, 1998
Inventor
Timothy A. Hovanec
Assignee (at issue)
Aquaria, 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.