Granted Patent
Utility
US 5,158,959 · App. 06/565,900
Decahydroisoquinoline carboxylic acids
Inventors:
Rolf Geiger, Volker Teetz, Hansjorg Urbach, Bernward Scholkens, Rainer Henning
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Dec 27, 1983
Inventors
Rolf Geiger
Volker Teetz
Hansjorg Urbach
Bernward Scholkens
Rainer Henning
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.