Granted Patent
Utility
US 5,043,428 · App. 07/538,695
Pasteurized, isoagglutinin-free factor VIII preparation and a process for its production
Inventors:
Norbert Heimburger, Wilfried Wormsbacher, Gerhardt Kumpe
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Jun 18, 1990
Inventors
Norbert Heimburger
Wilfried Wormsbacher
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.