Granted Patent
Utility
US 5,849,259 · App. 08/406,881
3-,8-substituted deuteroporphyrin derivatives, pharmaceutical agents containing the latter and process for their production
Inventors:
Christoph-Stephan Hilger, Franz-Karl Maier, Heinz Gries, Ulrich Niedballa, Johannes Platzek, Mary Lee-Vaupel, Wolfgang Ebert, Jurgen Conrad, Josef Gaida
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: May 24, 1995
Inventors
Christoph-Stephan Hilger
Franz-Karl Maier
Heinz Gries
Ulrich Niedballa
Johannes Platzek
Mary Lee-Vaupel
Wolfgang Ebert
Jurgen Conrad
Josef Gaida
Assignee (at issue)
Institut fur Diagnosikforschung 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.