Granted Patent
Utility
US 5,792,880 · App. 08/816,599
Process for the preparation of N-lauroyl-L-glutamic acid di-n-butylamide
Inventors:
Fritz Engelhardt, Manfred Muller, Michael Wessling
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Mar 13, 1997
Inventors
Fritz Engelhardt
Manfred Muller
Michael Wessling
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.