Granted Patent
Utility
US 4,416,786 · App. 06/392,464
Process for the treatment of continuous waste water streams having changing contents of different oxidizable materials with hydrogen peroxide
Inventors:
Helmut Knorre, Joachim Fischer, Klaus Stutzel
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Jun 28, 1982
Inventors
Helmut Knorre
Joachim Fischer
Klaus Stutzel
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.