Granted Patent
Utility
US 5,726,331 · App. 08/751,407
Dimethyl n-lauroyl-l-glutamate
Inventors:
Fritz Engelhardt, Manfred Muller, Michael Wessling
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Nov 21, 1996
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.