Granted Patent
Utility
US 5,423,958 · App. 08/204,357
Acidity control in chlorine dioxide manufacture
Inventors:
Rolf C. A. Brannland, Sture E. O. Noreus
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Mar 11, 1994
Inventors
Rolf C. A. Brannland
Sture E. O. Noreus
Assignee (at issue)
Eka Nobel AB
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.