Granted Patent
Utility
US 4,379,785 · App. 06/217,524
Heterocyclic substituted sulfonyl ureas, and their use
Inventors:
Rudi Weyer, Volker Hitzel, Karl Geisen, Gunter Regitz
Patented Case
View Patent ↗
Granted: Apr 12, 1983
Filed: Dec 17, 1980
Inventors
Rudi Weyer
Volker Hitzel
Karl Geisen
Gunter Regitz
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.