Granted Patent
Utility
US 4,288,431 · App. 06/084,100
Cyclosporin derivatives, their production and pharmaceutical compositions containing them
Inventors:
Rene P. Traber, Hans P. Hofmann, Eugen Harri, Kuhn Max
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Oct 12, 1979
Inventors
Rene P. Traber
Hans P. Hofmann
Eugen Harri
Kuhn Max
Assignee (at issue)
Sandoz AG
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.