Granted Patent
Utility
US 5,498,796 · App. 08/426,142
Process for the preparation of amines by catalytic hydrogenation of nitriles
Inventors:
Gregor Deckers, Dieter Frohning
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: Apr 19, 1995
Inventors
Gregor Deckers
Dieter Frohning
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.