Granted Patent
Utility
US 5,424,401 · App. 08/166,156
Process for the preparation of a stable factor VIII
Inventors:
Norbert Heimburger, Klaus Wellner, Karl-Heinz Wenz, Gerhardt Kumpe
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Dec 14, 1993
Inventors
Norbert Heimburger
Klaus Wellner
Karl-Heinz Wenz
Gerhardt Kumpe
Assignee (at issue)
Behringwerke Aktiengesellschaft
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.