Granted Patent
Utility
US 6,437,157 · App. 08/403,276
20-substituted steroids
Inventors:
Armelle Bonfils, Daniel Philibert
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Mar 13, 1995
Inventors
Armelle Bonfils
Daniel Philibert
Assignee (at issue)
Hoechst Marion Roussel
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.