Granted Patent
Utility
US 5,895,811 · App. 08/469,003
Artificial positive controls derived from bifunctional conjugates
Inventors:
Stefan Brust, Heinz-Juergen Friesen, Guenther Nau, Hans-Erwin Pauly
Patented Case
View Patent ↗
Granted: Apr 20, 1999
Filed: Jun 5, 1995
Inventors
Stefan Brust
Heinz-Juergen Friesen
Guenther Nau
Hans-Erwin Pauly
Assignee (at issue)
Behring Diagnostics GmbH
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.