Granted Patent
Utility
US 5,409,935 · App. 07/909,389
Xanthine derivatives for the treatment of secondary nerve cell damage and functional disorders after cranio-cerebral traumas
Inventors:
Hans-Peter Schubert, John J. Grome, Barbara Kittner, Karl Rudolphi, Ulrich Gebert
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Jul 9, 1992
Inventors
Hans-Peter Schubert
John J. Grome
Barbara Kittner
Karl Rudolphi
Ulrich Gebert
Assignee (at issue)
Hoechst 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.