Granted Patent
Utility
US 6,254,789 · App. 09/485,498
Method for treating aqueous solutions comprising acids and nitrated compounds
Inventors:
Philippe Marion, Louis Le Bris, Gerard Berrod, Georges Dovergne, Philippe Perrona
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: May 3, 2000
Inventors
Philippe Marion
Louis Le Bris
Gerard Berrod
Georges Dovergne
Philippe Perrona
Assignee (at issue)
RHODIA CHIMIE
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.