Granted Patent
Utility
US 5,078,884 · App. 07/427,849
Anoxic ammonia oxidation
Inventor:
Arnold Mulder
Patented Case
View Patent ↗
Granted: Jan 7, 1992
Filed: Oct 4, 1989
Inventor
Arnold Mulder
Assignee (at issue)
Gist-Brocades N.V.
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.