Granted Patent
Utility
US 6,197,341 · App. 09/068,823
Formulations of balsalazide and its derivatives
Inventors:
Stefan Friess, Harald Heckenmuller, Oliver Szambien
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: May 14, 1998
Inventors
Stefan Friess
Harald Heckenmuller
Oliver Szambien
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.