Granted Patent
Utility
US 5,723,461 · App. 08/544,290
Quinoxalines, a process for their preparation and their use
Inventors:
Manfred Rosner, Uta-Maria Billhardt-Troughton, Reinhard Kirsch, Jorg-Peter Kleim, Christoph Meichsner, Gunther Riess, Irvin Winkler
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Oct 17, 1995
Inventors
Manfred Rosner
Uta-Maria Billhardt-Troughton
Reinhard Kirsch
Jorg-Peter Kleim
Christoph Meichsner
Gunther Riess
Irvin Winkler
Assignee (at issue)
Hoechst GmbH
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.