Granted Patent
Utility
US 4,771,044 · App. 06/898,043
Tetraoxo compounds and pharmaceutical compositions
Inventors:
Uwe Schoen, Wolfgang Kehrbach, Werner Benson, Andreas Fuchs, Michael Ruhland
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Aug 19, 1986
Inventors
Uwe Schoen
Wolfgang Kehrbach
Werner Benson
Andreas Fuchs
Michael Ruhland
Assignee (at issue)
Kali-Chemie Pharma 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.