Granted Patent
Utility
US 5,674,881 · App. 08/345,341
Quaternary ammonium salts of aromatic amine compounds, their preparation and pharmaceutical compositions in which they are present
Inventors:
Xavier Emonds-Alt, Vincenzo Proietto, Didier Van Broeck, Jean-Claude Breliere
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Nov 21, 1994
Inventors
Xavier Emonds-Alt
Vincenzo Proietto
Didier Van Broeck
Jean-Claude Breliere
Assignee (at issue)
Societe Anonyme: Elf Sanofi
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.