Granted Patent
Utility
US 5,366,711 · App. 07/968,067
Process for the oxidative purification of waste gases containing nitrogen oxides
Inventors:
Wegido von Wedel, Ernst-Robert Barenschee, Hubertus Eickhoff
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Oct 30, 1992
Inventors
Wegido von Wedel
Ernst-Robert Barenschee
Hubertus Eickhoff
Assignee (at issue)
Degussa AG
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.