Granted Patent
Utility
US 6,437,186 · App. 10/020,914
Process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine
Inventors:
Daniel Ostgard, Monika Berweiler, Stefan Röder, Jorg Sauer, Bernd Jaeger, Norbert Finke, Christian Lettmann
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Dec 19, 2001
Inventors
Daniel Ostgard
Monika Berweiler
Stefan Röder
Jorg Sauer
Bernd Jaeger
Norbert Finke
Christian Lettmann
Assignee (at issue)
Degussa AG
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.